Tags Posts tagged with "STILLEN"


The Infiniti VR30 twin turbo might be one of the most hotly debated and anticipated engine design in years.  All the comments flying around the forums and blogs about a “cheap 600+ whp car” might make you wonder: is it wishful thinking, or an attainable goal?

For starters, the VR30 is not the same animal as the VG30 or a similar bulletproof iron block monsters of the 90’s. It’s also not a hand-built GTR motor already making 500+ hp.  Still, it’s all conjecture, and up until now Infiniti hasn’t released enough information to help separate fact from fantasy.

You may recall a few months ago we looked at the new VR30 Twin Turbo motor from an aftermarket perspective based on the information given at the time (An Aftermarket perspective on the new Nissan/Infiniti VR 3.0 Twin Turbo V6). Recently Infiniti released some “Technical Cinemagraphs” offering a closer look at this new engine. These Cinemagraphs give us a lot more information about the motor design and what we might be able to improve upon.

Twin Turbos and Two Outputs

As we already know, the VR30 will be a 3.0-liter V6 Twin-Turbo Engine with two output variations: one producing 300hp and the other a whopping 400hp. We covered the differences in the last blog post, so armed with fresh information we can look at areas we feel might yield results.

Intake Manifold and Intercoolers

Starting at the top with the most obvious (however not the cheapest) potential upgrade: the intake manifold. As you can see, the design of the intake manifold looks ideal for “packaging”. Looking at the diagram below you can see some of the restriction points as well as areas that are susceptible to turbulence. While this will work fine and is great for a the stock setup, it leaves room for potential improvement.


Take a look at the Nissan GTR Intake Manifold Design below. A larger plenum (which the OEM design doesn’t really have) helps take care of air starvation issue before the boost fully kicks in. The shape of the plenum creates less turbulence and feeds more directly into the runners. With this type of manifold, the runner lengths could also be optimized for performance. Coupled with the possibility of switching from an Air to Water to an Air to Air Intercooler setup (which would free up the space on top of the motor), a GTR-esque Intake Manifold would potentially yield serious gains.

GTR Intake Manifold_stillen

Intercooler Conundrum

We discussed an Air to Air Intercooler setup in the last article.  There are potentially limitations to the factory intercoolers as they were designed for a specific amount of power and boost. Also, with an increase in boost the almost 90° turn the air has to make could create another restriction point. If we can fit a front mount Air to Air Intercooler it could allow for a safer increase in boost and squeeze a lot more juice out of this new 3 liter.

You might say: “But STILLEN, what about the turbo lag from the increased distance between the turbo and throttle body?” While greater distance between the turbo and throttle bodies can increase the time it takes for the pressure to build, the effect is so negligible it’s not worth worrying about. The real difficulty lies with fitting all the plumbing in. We know what the Q50 engine bay looks like and an Air to Air Intercooler setup will prove very challenging. We hope that the Q60 gives us a little more space to work with. If not it should still be possible to upgrade the pump and heat exchanger for the Air to Water Setup, and/or upgrade the intercoolers themselves. However, because of the space restrictions, upgrading the actual intercoolers may be difficult.

High Flow Intakes

The next power grab opportunity is the intakes (everything pre-turbo). A visual analysis of the OEM design reveals an air flow path that can definitely be smoothed out. Understanding that Nissan/Infiniti had the parameters of the EPA to follow and NVH (Noise, Vibration, and Harshness) standards to meet, we know why they went with this design. Fortunately for us this leaves some room for improvement.


The air coming through the air boxes is forced through the restrictive panel filter, then takes a hard 90° turn over the Mass Air Flow Sensor (MAF) which is not ideal because of turbulence created by this design. It then executes yet another 90° turn before reaching the turbos. Simply reducing the number of turns in the system and creating a smoother path for the air as it passes over the MAF will allow for more accurate readings (helpful in tuning) as well as less restriction. The restriction can also contribute to a significant power loss. On other modern turbo powerplants, we have observed notable power gains by simply adding a high flow intake which can increase the boost (boost can be limited by restrictions on the intake side of both Turbo’s and Superchargers).

Exhaust & Turbos

Exhaust system modifications on turbo cars always generate power gains. Down pipes and cat-backs are already a given for the VR30 and will be available from STILLEN. Now we finally got a look at the cylinder head to turbo interface so we can see what might be done about turbo upgrades.


Looking at the design of the turbo flange, it appears that fabricating an adapter for aftermarket turbos should be pretty simple. Though we don’t know specs on the turbos yet, it won’t be difficult to sort out good upgrade options for those looking to make a lot more power. The only limiting factor might be space, but most upgrades shouldn’t pose an issue.


We still need more information about the engine internals before we can be more specific about turbo upgrades and increased boost. However, most Nissan/Infiniti Motors tend to be pretty hearty. The old VG30’s were capable of 550-600 whp with a healthy block and the VQ37’s held up to about 500 whp on stock internals (with Turbo Kits). It seems fairly safe to assume we be able to get this motor close to the 500 whp mark without reliability issues. The 600 whp mark that everyone is hoping for might be a possibility, but it will depend on the strength of the internals.


We will be getting a few VR30 equipped test vehicles delivered to STILLEN in the next few months. We can’t wait to get our hands on them and start doing some real world testing. Stay tuned for more articles and info on the VR30 as we continue to learn more about this motor!


STILLEN combines best in class automotive parts and accessories with expert service to deliver personalized lifestyle solutions for automotive enthusiasts seeking power, performance and style.

How to Pick the Perfect Aftermarket Swaybars

Every week our automotive experts get questions about swaybars from automotive enthusiasts.

No wonder…swaybars, a.k.a anti-roll bars, are a popular and cost-effective way to significantly improve vehicle handling in corners, through slaloms and during evasive maneuvers.

There’s no one-size-fits-all answer to the question: “Which swaybar is right for me?” Picking your perfect swaybar requires consideration of key factors including:

  • The make and model of your car or truck
  • How and where you’ll drive it
  • What you hope to gain from suspension upgrades like sway bars

This sway bar buying guide will help you decide which anti-roll bars are right for you.

Soon you’ll be on the road to happier handling!

Stillen sway bars shown on Infiniti Q50

You can enjoy simple, cost effective handling improvements with a set of STILLEN sway bars

Begin at the End

By which we mean:

  • The best sway bar for you depends on how you’ll use your vehicle. Is it your daily driver, canyon carver, weekend track car, full-time race car, rock crawler or desert mauler?
  • The right sway bar is part of an integrated suspension system that reflects your primary vehicle use. For track days or racing, the optimal suspension setup may include shocks, springs and wheel alignment changes along with aftermarket sway bars.

Take the Bar Exam

So what is a swaybar exactly? Simply put, it’s a metal crossbar that ties the driver and passenger side chassis and suspension together. When a car is traveling straight down the road or track, a sway bar has little effect on handling.

But as soon as you crank on the steering wheel and enter a corner, a sway bar ‘springs’ to life to help control the weight shift that occurs during cornering.

Here’s how a swaybar works:

  1. As your vehicle turns into, say, a left-hand corner, a portion of vehicle weight transfers (‘rolls’) to the right-hand side of the vehicle.
  2. This rolling effect loads the suspension, steering and tires on the right-hand side of the vehicle. Some side loading is desirable and necessary as long as it’s controlled.
  3. A sway bar helps control this rolling effect by twisting along its axis as the chassis and suspension moves.
  4. As the bar cycles through its range of travel, it offers progressively more resistance to twisting.
  5. The sway bar’s ever-increasing resistance to twisting works to counter the force of vehicle roll.

Check out this cool animation showing a swaybar in action:

Not all Plants are Potted

After installing a swaybar, the effect you’ll notice from the driver’s seat is that your car feels level or ‘planted’ as you take a corner.

This ‘planted’ stance is the result of better weight distribution and traction.

Not only does it feel good, it offers big benefits:

  • A car that’s more planted through a turn allows for better rotation and more control
  • A car that’s more planted lets you get back on the gas sooner, resulting in quicker acceleration out of the turn

With the right sway bars on board, you’ll soon be taking familiar corners at higher speeds than you used to.

And grinning a lot more too.

Stiffer Isn’t Always Better

Is an aftermarket swaybar always necessary?

Given that STILLEN is a leading manufacturer of aftermarket sway bars, our answer may surprise you.

The answer is: No, an aftermarket sway bar isn’t always the best solution for every vehicle, driver or environment.

Here’s why:

  • In most cases, an aftermarket sway bar is going to be stiffer than the factory sway bar
  • In most cases, this is going to improve the performance and handling of the car
  • For most drivers, these improvements are going to make them happy and they’ll quickly adjust to the improved handling characteristics of their car

But we won’t tell you that installing a swaybar is the right thing for all drivers vehicles and situations.

Real World Results May Vary

For instance, suppose you’re looking to improve the handling of your daily driver and you install a sway bar rated at 200% stiffer than stock.

Rather than improve, your cornering performance, ride quality and traction will suffer on real world road surfaces. Potholes, mid-corner dips, and road kill will all fight against your uber-stiff setup.

Say your left side front wheel hits a bump mid-turn. Stock suspension or a moderately stiff aftermarket sway bar will transfer some of the energy to the passenger side front wheel – no biggie.

But an extremely stiff sway bar will transfer much more of the energy – maybe enough to unsettle the suspension and reduce traction by creating tire lift on the inside wheel and excessive sidewall flex on the outside tire.

The swaybar you installed to improve handling can work against you, especially paired stock springs and tires (more on this later).

Newfound Glory

Even world-class car handlers like STILLEN founder Steve Millen don’t automatically run stiffer swaybars.

Here’s a great example of a situation where an aftermarket sway bar wasn’t optimal for the conditions:

In 2009 the STILLEN rally team headed to Newfoundland, Canada, to compete in the Targa Newfoundland rally with a NISSAN GT R. Prior to the trip, the team engineered new Penske coil overs and new sway bars along with a host of other performance parts designed to enhance the already formidable GT R.

They also packed the factory front sway bar into the trailer.

You might think: “Well Duh, rally car….if you crash you need spares.”

But in reality, the team wasn’t convinced the stiffer sway bars they’d developed and tested on smooth roads during the Southern California summer were going to be suitable for the rough roads of Canada.

Especially when the forecast called for plenty of rain North of the border.

When driving in the rain, tire compliance is key to maintaining traction. When the road is dry and offers plenty of tire grip, you can stiffen the suspension and make the tire work harder.

But when traction is limited, a stiffer setup overworks the tires and traction suffers. Better to soften the suspension and make it more compliant to conform to the road surface.

In the end, the team found that the optimum setup for the STILLEN GTR on the Targa Newfoundland roads: run the OEM front sway bar and the STILLEN rear sway bar.

By retaining the stiffer rear sway bar they reduced the car’s natural tendency to understeer and made the car rotate better through the turns.

The next year when they took the car to the Targa Rally in New Zealand, they re-installed the STILLEN front sway bar and ran stiffer coil springs on the Penske shocks.

The roads in New Zealand are faster and offer more grip even in rainy conditions. The stiffer setup was spot on for maximum control in the challenging environment of rally racing.

Check out the results in this video from the 2011 Targa Rally:

Moderation for the Masses

For the vast majority of drivers using their vehicles for daily driving, canyon carving or occasional track use, sway bars that impart a moderate increase in stiffness are the best choice. The incremental stiffness will retain factory-like ride quality while offering improved handling in the corners and slaloms.

For even more versatility and fine-tuning, adjustable sway bars might be your best option.

The more adjustability a sway bar offers, the more you can fine tune your suspension to suit your needs and preferences.

What’s more, adjustable sway bars allow you to set up your suspension to favor:

Oversteer (when a car turns more sharply than desired by the driver), or

Understeer (when a car turns less sharply than desired by the driver), or

Neutral Handling (when a turns exactly as desired by the driver)

Illustration of a car in oversteer

Car in understeer condition

UNDERSTEER happens when a car does not turn as sharply as driver intends.

Z Well Adjusted Z

The Nissan 370Z is ideal for explaining understeer and oversteer and for illustrating the versatility of adjustable sway bars.

Check out the stiffness ratings of the 370Z sway bars listed in the below chart.

Brand Front Rear Adjustable
% Stiffer (F/R) Best For Size (F/R) Color Construction Endlinks Bushings
Stock Yes Yes No Stock N/A 26.5mm/24mm Black Hollow Stock Stock
Nismo Yes Yes No N/A N/A 27mm/25.5mm Black Hollow Stock Uses Stock
Eibach Yes Yes 2 way / 3 way 76, 117% / 67, 98, 130% Street & Light Track 32mm/29mm Red Hollow No Yes
Hellwig Yes Yes No / 3 way N/A Track & Occasional Street 35mm/25.5mm Grey Hollow No Yes
Hotchkis Yes Yes No / 3 way 205% / 40, 75, 120% Track & Occasional Street 35mm/28mm Grey Hollow No Yes
STILLEN Yes Yes 5 way/ 3 way 21-48% / 37-70% Street & Light Track 27mm/25.5mm Red Hollow No Uses Stock
Suspension Techniques Yes Yes 2 way / 2 way 55, 88% / 30, 66% Street & Light Track 28mm/24mm Green or Black Solid No Yes


You’ll notice the STILLEN option is a little different. We conducted extensive (and fun) road and track testing to get a feel for the 370Z and determine the best sway bar setup to optimize handling without diminishing the inherent nature of the car.

Like the majority of vehicles on the road today, for safety purposes the 370Z is set up from the factory to understeer a little.

The reason for this is liability and safety.  Auto manufacturers like Nissan have to build their cars for typical drivers who aren’t trained to handle a car in high-stress situations.

When the average driver experiences understeer, their natural reaction is to panic, let off the gas, and apply the brakes. Conveniently enough, this is exactly how to counter understeer.

With less gas and more brake, the vehicle will slow down, the tires will regain their composure and the vehicle will resume traveling in the desired direction. 

Too bad, because one of the biggest advantages of a rear wheel drive car like the 370Z is the ability to power through turns. With the factory setup favoring understeer, this advantage is lost.

All that beautiful power going to the rear wheels is pushing the car in a direction you don’t want to go.

Using a STILLEN adjustable sway bar, a 370Z the driver can fine tune the suspension to balance and improve the handling of the car.

This balanced feel will a give the Z pilot the confidence to  carry more speed through a turn as they begin to feel the car rotate through the turn as opposed to pushing through it.

Stillen 370Z rear sway bars

STILLEN rear sway bars take 370Z handing from great to superlative.

Through extensive testing and refinement, STILLEN identified stiffness increments we selected offer the 370Z driver great options. The STILLEN sway bars can be adjusted for a good balance of road comfort and crisper handling for spirited daily driving and canyon carving.

At the other end of the spectrum, drivers looking for maximum performance can adjust the bars to a stiffer setting for track days.

All Together Now

Along with a stiffer sway bar, for track or racing use, the key to maximum control and handling on the ragged edge may include shock or spring upgrades, tweaking wheel alignment and selecting the proper tires.
Here’s what the STILLEN experts recommend:

  1. Determine which tires you are going to run
  2. Select the springs you’ll run based on tires, track layout and conditions
  3. Select which sway bar is right for you
  4. Adjust wheel alignment to suit, keeping in mind a more aggressive sway bar usually requires more aggressive alignment settings

For example, for track use you might run an aggressive tire like a Nitto NT-01 or a Nitto NT-05. If you don’t mind running an aggressive alignment specification, a really stiff sway bar should work well.

However, if you’re using your car primarily for road use, you might run tires like the Nitto NT555 or an Nitto INVO. The ideal sway bar will be slightly stiffer than the factory bar. 

Sway Your Opinion

Bottom line: a properly matched set of sway bars will really improve the balance of your car or truck and is a great way to fine tune handling.

The result: major improvement in the joy you get out of hustling your ride through your local canyon roads or on your favorite race track.

Most drivers will be happiest with a moderate increase in stiffness. An adjustable sway bar offers the versatility to fine tune handling as desired.

STILLEN has been designing and manufacturing sway bars in-house for more than 20 years.  We private label manufacture swaybars for some of the largest “suspension manufacturers” in the industry.

We have also manufactured sway bars for OEM vehicle manufacturers as well.

In addition to our swaybar manufacturing expertise, we design and develop complete suspension packages for use on street, track and off-road environments.

Bottom line: you can buy and install STILLEN swaybars with confidence!

Got more suspension questions?

Call one of our Automotive Counselors for expert advice at (866) 250-5542.

STILLEN is a company that is proud to be owned and operated by automotive enthusiasts. This month’s employee spotlight is on one of our long time employees.

Cheryl Stramotas


Cheryl has been working with STILLEN for 9 years. She heads up the Human Resources Department and also handles company safety for all 3 buildings and branches of STILLEN. Cheryl isn’t your typical HR Manager. She is an avid automotive enthusiast and she shares that passion with her husband. They have owned a lot of cars, but one of their favorites is this 1997 Acura NSX.


Cheryl purchased this NSX in 2009, a couple years after selling her previous NSX. “We bought this NSX because we missed the performance, design, and reliability.” The car came equipped with the CompTech performance package when it was purchased. This included the Supercharger, Big Brakes, Sway Bars, and Tower Brace. Now a lot of people would look at the car and feel like there wasn’t anything to add, but Cheryl had plans. Within no time the NSX received an appearance overhaul. A full 2002+ NSX Exterior update was performed (which is quite extensive), along with Seibon Carbon Fiber Rear Wing, DownForce Carbon Kevlar Scoop Hood, B-Line Cold Air Intake, and Enkei Wheels. Lastly the interior was redone with Leather and Alcantara, and a Honda S2000 Steering Wheel while adding in some extra gauges to keep tabs on how the car is running.


Don’t think this is just a garage queen though. Cheryl drives the NSX to work a couple times a week and takes it out on weekends quite regularly. The rest of the time she commutes in her Infiniti EX35 which is currently stock. But of course she plans to add a on STILLEN Supercharger in the near future. Cheryl and her husband are no strangers to performance cars and have also owned a 2007 350Z Convertible, a R35 GTR, and now have an Audi RS5. As cars continue to come and go for Cheryl, this NSX is definitely going to be a permanent resident in their stable.


Enthusiast employees are one of the things that make STILLEN a unique company and what helps drive us forward every day.






STILLEN is a company that is proud to be owned and operated by automotive enthusiasts. This month’s employee spotlight is on one of our rising stars.

Jillian White


Jill started working at STILLEN mid 2015 and has been awesome to have around. She has proven to be one of the biggest gear heads here and is always on a mission to learn more and help others build their dream car.


Jill’s passion for cars started after she bought her first mod for her first car (Scion TC). She installed it herself and realized she enjoyed working on cars. After a community college automotive class she was hooked. Jill bought her first project car, a 1966 Karmann Ghia which she has been restoring for the past few years. “It will be a complete resto-mod. No bolt unturned. I wanted to build a car just like Chip Foose and his A team. The dream is still there and it’s slowly becoming a reality.” While working on her first project car Jill grew tired of her TC and decided she wanted something older with a little more of a soul. She picked up a 1978 Datsun 280Z after helping a friend work on their 280Z.


Originally intended as just a daily (famous last words), Jill started off with replacing things like the brakes, and various suspension components. It wasn’t too long after that she needed to look for new tires. Now we all know that new tires mean you might as well get new wheels too right? Within no time her daily became its own little project. She soon tackled the body work (and yes, she did it herself) and got the car painted. She’s continued to add some finishing touches here and there and plans on doing turbo swap in the future. At this point Jill just wants to maintain the Z and keep it classic. “For now she’s just a solid Daily. One day I hope to give her the same treatment as the Ghia, but it’ll be a long way off.”






For quite a long time the IS350 has been the choice for Lexus IS enthusiasts. Due to its lack luster power, the IS250 simply fell out of favor from the tuning scene. The only thing keeping it in the hands of enthusiasts in the previous generation was the availability of a 6 speed manual gear box. With the 3rd generation only having the option of an automatic there seemed to be almost no reason for enthusiasts to purchase the IS250. However, Lexus has now joined the other luxury brands in utilizing small displacement forced induction motors for entry level models.


Enter the new IS200t. While on paper the new 2.0 Turbo (8AR-FTS) seems like it was more designed with economy in mind, we believe there is a lot of untapped performance. The power output of the 8AR (241 HP and 258 lb-ft of torque) is very similar to the competition from “rival” companies. BMW 328i 240 hp & 255 lb-ft, Mercedes C300 241 hp & 273 lb-ft, Audi A4 220 hp & 258 lb-ft, Infiniti Q50 211 hp & 236 lb-ft, and Cadillac ATS 272 hp & 295 lb-ft, just to name a few. While the performance limits of these motors have not but pushed much either, it doesn’t mean there isn’t a lot of fun to be had with them. We have seen that the BMW 328i motor can produce over 275 whp (around 320 HP) with some tuning and basic bolt-ons. While this doesn’t say exactly what is possible with the 8AR motor, we can probably assume the motor could tolerate at least 300 HP. While this isn’t mind blowing, this would put the IS200t closer on par with the more expensive IS350. If you can imagine that bigger gains are possible this could mean that the IS200t could easily out power the IS350 and still end up costing about the same, or maybe even less with cheaper insurance costs.


Now we know many will say, “but there are no tuning solutions for the Lexus ECU’s”. While this may currently be true, we don’t expect it to stay that way for much longer. What we do know about the motor is we are dealing with a 10:1 compression ratio (perfect for forced induction with direct injection) engine with a square 86.0mm x 86.0mm Bore and Stroke. If this motor is anything like the turbo motors of old (2JZ, 3S, & 7M) we shouldn’t have to worry about the internals with modest power gains. While the 8AR is fully aluminum we have seen all aluminum Toyota motors handle modest forced induction with ease. The 2ZZ and 2GR in certain Supercharged Lotus cars have shown great durability even after adding more power. We hope to take a closer look at IS200t in the near future and see what we can do with it.



With so much hype around the Infiniti Q50 and the new Twin Turbo V6 it will be receiving we think some people forgot that the new Q60 was being released soon. Well, today all of you two door lovers out there got a big treat.


Infiniti released the 2017 Q60 today at the Detroit Auto Show and it is beautiful. The new Q60 will come with the same engine options as the 2017 Q50. A 400 HP (350 lb-ft) Twin Turbo V6 at the top of the line up, a 300 HP (295 lb-ft) Twin Turbo V6 will be the middle option, and the entry motor will be a 208 HP (258 lb-ft) 2.0 Turbo Inline 4 (for more analysis on the Twin Turbo V6 motor please see our blog article “An Aftermarket perspective on the new Nissan/Infiniti VR 3.0 Twin Turbo V6“).

It is not clear yet, but it seems all versions will be available with AWD. Twin Turbo V6 variants will come with the 2nd generation of the Direct Adaptive Steering (DAS) which will hopefully prove to be much better than the first generation. Infiniti is also adding a 2nd suspension option that they are calling the Dynamic Digital Suspension (Standard on Sport Models) which will allow you set you suspension for the right occasion.


All of these new options and upgrades made the Infiniti Q60 a much more appealing car in a very competitive segment. Though the 400 HP variant will probably run in the $50k range, we are certain that the mid level 300 HP Version will be able to be modified to compete with the big boys the way the BMW 435i has compared to the M3.






STILLEN is a company that is proud to be owned and operated by automotive enthusiasts. This month’s employee spotlight is on another one of our veterans here.

Kenny Duong


Kenny has been a performance specialist at STILLEN since 1999. Before working for STILLEN, he was already an avid car enthusiast. Kenny has owned some of the most Iconic cars from the 90’s imaginable. When he started at STILLEN he drove a FD RX-7 and has had cars like the S13 240SX and MKIV TT Supra in his stable. Now as time passes our taste in cars can change. Kenny decided to switch things up around 2012 and got himself a 997 911 Turbo, “That car is amazing!”. As many of have experienced, as we have matured our tastes in cars have changed a little, but there is that magical appeal of those dream cars from years past. Cars like the 300ZX, RX7, Supra, NSX, etc will always hold a special place in our hearts and always tempt us to bring one home. There is one car for most import tuning enthusiasts that some might call the “holy grail” which is the Nissan Skyline GTR. A performance car that was never legalized in the States and is more rare to see than almost any super car does not usually cross people’s minds when they are considering a car to purchase. We won’t go through all the details, but a handful of R32 and R33 Skylines were legalized here in the US and are very sought after.


R33 Skyline GTR

Kenny felt that itch to own a piece of Tuner Car history and set out on a mission to buy a Skyline. After months of searching, Kenny finally found his Federal and California Legal R33 Skyline GTR. Many of us here at STILLEN could tell you about those months spent searching and we got to see the struggle as well as the excitement when the car was finally in his possession. Kenny loves owning such a rare car and is really a dream come true.


If you ever get a chance to talk to Kenny over the phone or in person, make sure to ask him about his Skyline.



IMG_9022 copy

STILLEN is proud to announce that all current production STILLEN superchargers have achieved CARB exemption through 2014!  For many years, STILLEN has been recognized as the leader in NISSAN/INFINITI performance products and we continue our commitment by continuing to invest in tuning these fine vehicles. Our dedication to the NISSAN/INFINITI vehicles and the pride we have for the parts we manufacture for them shines through with this latest accomplishment.  The new CARB exemption order numbers (EO # D-426-19 and EO# D-436-20) cover all single and dual throttle body supercharger systems for the VQ35, VQ35HR, VQ37, VQ40 and VK56 engines.

STILLEN CARB Approved Supercharger for Nissan 350Z

STILLEN CARB Approved Supercharger for VQ37 engines

Not only is STILLEN the only company to offer CARB exempt performance parts for these vehicles, but STILLEN is the only company in the world to achieve CARB legality when tuning through the factory ECU with larger fuel injectors.  In the past, the only way to achieve CARB approval was with a piggyback ECU.

With the latest extension of CARB Exemption Order numbers, STILLEN is also excited to announce the extension of the powertrain warranty programs already in place for these supercharger systems.  When you purchase your supercharger kit you have the option of adding a 3 year/36,000 mile powertrain warranty.  STILLEN is the only NISSAN/INFINITI tuner in the world to offer this with their supercharger systems.

Note: CARB (California Air Resources Board), a division of the California state government, is widely recognized as the strictest emissions control in the US and is recognized in all 50 states as an emissions standard for all performance parts. If a performance part achieves CARB legality, it is recognized as 50-state legal.

STILLEN CARB Approved Superchargers:

Single Throttle Body Superchargers (EO# D-436-19)

50-State Legal Nissan 350Z Supercharger by STILLEN

50-State Legal Nissan 350Z Supercharger by STILLEN

Dual Throttle Body Superchargers (EO# D-436-20)

STILLEN 50 State Legal Supercharger for Nissan 370Z

STILLEN 50 State Legal Supercharger for Nissan 370Z

Want to see more photos of the of the STILLEN dual throttle body superchargers? Check out the slide show below!

Next Steps

For more information about STILLEN’s 50 state legal superchargers, please call us at (866) 250-5542 and we will be happy to help you. We also feature wide variety of other performance parts and a full service performance shop that specializes in dyno tuning, laser alignment, supercharger installations, and more!

2013 Infiniti G37 Cold Air Intake

STILLEN 2013 Infiniti G37 Cold Air Intake

Just announced… STILLEN cold air intakes for Nissan and Infiniti vehicles have been CARB approved through 2014! For nearly 20 years, STILLEN has worked with the California Air Resources Board (CARB) to develop products that are compliant with OE standards of total vehicle integration and performance. With this long history in mind, STILLEN is proud to announce the cold air intakes for the Infiniti Q50 and Q60 have been CARB approved. We are equally proud to announce year range extensions for the 2014 370Z , Maxima and more. For a full list of vehicle applications, please see below.

STILLEN was the first company to prove that a cold air intake on the VQ37 engine could actually make power and is still recognized as the leading cold air intake with the highly sought after Generation 3 long tube cold air intakes for the 370Z, G37 and Q60.   It took 6 months of in-house R&D and testing and 56 different variations of prototype intake systems but it was all worth it and the end result was the leading cold air intake for the VQ37 equipped vehicles.

Nissan Titan Air Intake

STILLEN Air Intake for Nissan Titan

When it came time to manufacturing air intake systems for vehicles like the Altima, Maxima, Titan, Frontier, etc. STILLEN leaned on its vast experience in manufacturing high performance parts for NISSAN/INFINITI vehicles.  On the Nissan Altima and Maxima applications STILLEN is the only manufacturer of high performance intakes that incorporates a poly-urethane ducted air intake path leading fresh air from behind the factory grille directly into the air intake filter.  Included in many of these kits is STILLEN’s unique velocity ring which increases the velocity of the air as it is drawn into the engine thus producing more power!

Note: The California Air Resources Board (CARB) is a division of the California state government and is widely recognized for having the most stringent emissions control regulations in the United States. Therefore, each of the 50 states recognizes its standards as the emissions standard for all performance parts. Each performance part that achieves CARB legality is considered 50-state legal.

STILLEN CARB Approved Cold Air Intakes (EO# D-436-21)

STILLEN CARB Approved Cold Air Intake

Contact Us

For more information about the STILLEN cold air intakes, please browse our website or call (866) 250-5542 to speak with one of our experts. We will be happy to answer any questions you have. If you life in the Orange County, CA area and need your air intake installed, we will also be happy to schedule an appointment for you in our performance shop.

Here at STILLEN, we’re pretty proud of the products we make. We know firsthand how much time and effort goes into sourcing the correct materials, developing the perfect design and testing the prototypes all so that we are 100% confident that the aftermarket parts our customers are putting into their cars are the best they possibly could be. As proud as we are of the parts we make, we are even more proud when a third party recognizes a STILLEN part for its quality. Needless to say, the office was abuzz this week when we found out the STILLEN brake cooling kit for the Nissan 370Z was featured in a MotoIQ Project 370Z article!

MotoIQ Reivew: Nissan 370z with STILLEN Brake Cooling Kit

Nissan 370z with STILLEN Brake Cooling Kit

Project 370Z Article Summary

As the article mentions, the goal of Project 370Z is to get some track time with their 370Z. As improvements to the car have led to improved lap times, they have also led to more stress on the brakes. With this in mind, the team decided it was time to upgrade with the brake cooling kit. With that decision made, it was time to actually install the kit and test it. By this time, most of the STILLEN team was on the edge of their seat wanting to hear how our in-house testing was comparing to MotoIQ’s third party testing. Checkout the quote below to see how our brake cooling kit fared:

“With the brake ducts covered, the right front caliper temperature peaked at 272 degrees Fahrenheit, and the rotor at 529 degrees Fahrenheit. The Left front caliper reached 259 degrees, with the rotor at 550 degrees. Once the ducts were opened, both the left and right side caliper dropped 44 degrees. The right front rotor dropped 156 degrees, and the left front rotor dropped a whopping 216 degrees! This is a significant reduction and spot on with STILLEN’s in house testing at the same track. We were truly impressed with the numbers. Also the brake feel and control stayed more consistent throughout the session with the ducts functioning. Any 370 that sees a decent amount of track time should look into purchasing this kit, it’s a cost effective way to give yourself a higher temperature threshold for your brake system and will also prolong the life of the ware items such as pads, rotors, piston seals, and brake fluid.” – Clint Boisdeau, MotoIQ

Get More Information On the STILLEN Brake Cooling Kit for Nissan 370Z

For more information on this great brake cooling kit check out the full article here or visit www.stillen.com for more details. If you would prefer to speak with our experts about this kit or any of the other Nissan 370z parts we sell, please call 866-250-5542 and we will be happy to answer any questions you have. For our Southern California 370Z enthusiasts, we also have a full service performance shop that can install everything from brake cooling kits to superchargers and exhausts. If you want your kit professionally installed, just let us know and we’ll schedule an appointment for you!