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AP Racing

Brake Systems 201: 2-Piece Rotors, Fluids and Lines

By Richard Fong

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Upgrading brake pads and rotors can make considerable improvements to a vehicle’s braking system, especially since the factory equipment is generally adequate for an everyday street application but not always ideal for high-performance driving. However, there are a few other variables that can further enhance the performance of a factory brake system before making the jump to aftermarket calipers and larger rotors. Now that you’ve been familiarized with some of the first and most straightforward brake-system upgrades in our Brake Systems 101: Pads and Rotors, it’s time to look at the next modifications in line to optimize the factory brake system. Two-piece rotors, performance fluids and braided brake lines can further improve your factory brake system for greater performance on both the street and the track.

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Room to Expand

A smoothly-operating vehicle typically indicates that all is well and functioning properly. When an ABS-like vibration feeds back through the brake pedal, it can be disconcerting to some and annoying to others. It’s certainly an indication of something amiss that requires attention. That vibration could simply be caused by uneven pad material built up on the surface of the rotor, for which a proper brake service (new pads, resurfaced or replaced rotors, brake fluid flush) would remedy. However, in the case of performance and heavy utility applications, the damage to the rotors could be more severe.

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Dissipating Heat

A vast majority of brake rotors on the market are manufactured as a single piece of iron for cost and durability. As the friction surface for the pads, rotors are subjected to extreme heating and cooling cycles. Since the center or “hat” of the rotor bolts to the wheel hub, it is sandwiched between the hub and the mounting pad of the wheel. This limits the rotor’s ability to expand and contract freely when subjected to extreme braking conditions (as would be the case on a racetrack or during an aggressive mountain drive) and could lead to warped rotors. A viable solution would be to upgrade to a 2-piece rotor solution. In this application, a billet aluminum hat is fastened by way of “floating” hardware to a rotor, which permits the rotor to expand, contract and dissipate heat without being restricted by the hat. A 2-piece solution also permits the use of exotic and lightweight rotor materials as well, like a carbon-ceramic matrix.  An added benefit to having a billet aluminum hat and/or lighter rotors is reduced unsprung weight. This weight reduction helps to sharpen and lighten steering response which further lends to improved handling.

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Boiling Point

A recurring theme in brake systems is that heat is the enemy. For the most part, this is true, the exception being specialized brake pad compounds formulated to function optimally at higher temperatures (racing brake pads). Aside from this instance, heat that is generated by the friction between the rotors and the pad material eventually transfers to the calipers and then the brake fluid. Modern brake systems are hydraulic, which means that they rely on incompressible hydraulic fluid (in this instance, brake fluid) to actuate the pistons against the pads when the brake pedal is depressed. The Department of Transportation (DOT) has established standards to indicate a fluid’s capabilities. DOT 3 brake fluid is the most common fluid used in automobiles. The name denotes the fluid’s heat capacity and performance capability as required by the DOT. Street vehicles rarely exceed the capabilities of DOT 3 fluid under normal driving conditions. When brake fluid heats to the point of boiling, pockets of air form in the brake lines. These compressible voids translate into a spongy brake pedal and an unresponsive brake system with dramatically reduced stopping ability. If you’ve upgraded your pads and rotors and have not upgraded the brake fluid, this could be the cause of poor braking performance. The solution is to upgrade your brake fluid. Under performance conditions such as on a track or a road requiring significant and frequent brake input, upgrading to DOT 4, DOT 5 or DOT 5.1 brake fluid will help to maintain the responsiveness and effectiveness of the brake’s hydraulic system.

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DOT Standards

Typical factory brake fluid is engineered to function within a prescribed temperature range optimized for the majority of driving conditions that the manufacturer expects a vehicle to encounter. This covers a broad spectrum of conditions ranging from freezing to triple-digit ambient temperatures. While these requirements cover a seemingly broad range of temperatures, the brake fluid must endure far more extreme temperatures. DOT 3 fluid is the most common fluid type employed by automakers with some requiring DOT4 fluid (in the case of higher performance or heavy duty applications). DOT 3, 4 and 5.1 are polyethylene glycol based fluids while DOT 5 is silicone based. The hygroscopic traits (propensity to absorb moisture from the atmosphere) of the DOT 3, 4 and 5.1 fluids could render the fluids less effective over time. Regular flushing of the brake system mitigates this effect. The silicone-based DOT 5 fluid tends to cost more but benefits from its hydrophobic properties.

Fluid Grade               Dry Boiling Point                  Wet Boiling Point

DOT 3                                          401 F                                              284 F

DOT 4                                          446 F                                                311 F

DOT 5                                          500 F                                                356 F

DOT 5.1                                       500 F                                                356 F

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Typical OEM rubber brake lines tend to expand under hard driving conditions, resulting in slower response and a spongy pedal feel.

Containing the Pressure

Another component of a factory brake system that could benefit from improvement is the brake line. The stock brake lines are often high-pressure rubber hoses designed to be flexible throughout the full range of travel for your suspension. However, during high performance braking, these factory lines tend to expand under extreme pressure, resulting in reduced responsiveness and braking performance along with a spongy brake pedal. To improve the responsiveness of the brake system hydraulics, swapping out the factory brake lines with performance brake lines is an essential upgrade. Performance brake lines (like those offered by Goodridge) feature a PTFE liner (inner hose) that is shrouded by a flexible sheathing (stainless steel or even exotic materials like Kevlar) that protect the liner and prevent expansion. This keeps the fluids moving toward the calipers, for more responsive braking under all driving conditions.

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Stainless-steel braided brake lines like this Goodridge unit feature a PTFE liner for durability. The braiding helps to protect the liner from abrasion while also mitigating the expansion of the line under pressure.

Maxed Out

Now that you’ve learned about the basics of brake systems, you can maximize the stopping performance of your vehicle. Slowing and stopping are paramount for safety as well as performance, regardless of your application. From streetcars and track cars to tow and utility vehicles, a good braking system is a must. If you’re pushing your vehicle beyond these bolt-on solutions, you could be a candidate for a big brake upgrade, which will be covered in the next two installments of STILLEN University. Stay on track!

Do you have more questions about what would be right for your application? Reach out to us at 866-250-5542, at sales@stillen.com or by live chat on our website stillen.com to help you select the product that best suits your needs.

In our next installment of STILLEN University, we’re going to explore big brake system upgrades in greater detail. Check back with us soon!

#1 – AP Radi-CAL II and AP Racing by STILLEN

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AP Racing by STILLEN introduced the World Radi-CAL II Braking System. These revolutionary Forged Calipers are the most advanced brakes on the market. Forging makes them Lighter and Stiffer than Casting. The Asymmetric Design allows for optimal strength while still using Sequential Sized Pistons for even pad wear. Quick Change Pads are as simple as removing the retaining pins. The calipers still feature High Temperature Double Sealed Pistons so they are safe for road use but will stand up to the high temperatures of track use. The AP Radi-CAL II are available in Red, Black or Silver Calipers (custom colors available – contact us for pricing).

Comparison: Radi-CAL I vs Radi-CAL II

  • 4% Lighter than Radi-CAL I
  • Stiffer than Radi-CAL I (6-piston: 33% stiffer | 4-piston: 28% stiffer)
  • Incorporating iconic Radi-CAL Stiffening Band
  • 6-Piston Radi-CAL II Caliper can effortlessly fit behind an 18-inch wheel with a 370mm rotor.

One of the best parts about Radi-CAL II is you can easily swap out Radi-CAL I Calipers for a Radi-CAL II upgrade! So if you already have our Radi-CAL I kit, you can simply swap out calipers to upgrade!

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AP Radi-CAL II behind a Flow Form 18 inch wheel (HRE FF15 18×9.5)

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#2 – Widebody Civic Sedan from Seibon (teamed with AP Racing and Mackin Industries)

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The Honda Civic is still one of the most commonly modified cars of all time. The thing is, this isn’t a true statement for a lot of Honda’s post millenia change. Countless enthusiasts started out in the Honda scene and many have moved on to different platforms because of the void of performance potential left vacant by Honda with the early-to-mid-2000’s Civic. Perhaps not on purpose, but certainly to our delight, the Civic now comes with a turbo motor available. While the 10th generation Civic is still developing in the market, it is exciting to see what is already available.

This wide body Civic Sedan kit produced by Seibon Carbon was inspired by the Type-R concept to give the sedan an aggressive look and stance. This kit also allows for you to run wider wheels and tires for the performance minded. We assume we will see these kits on the turbo model sedans mainly as we have already seen impressive results from bolt-ons and tuning. This kit will be available exclusively through STILLEN. If you would like more information on the Seibon wide body kit please give us a call or email sales@stillen.com.

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This build featured some of the best names in the industry with AP Racing by STILLEN creating a prototype Radi-CAL Brake Kit, Rays Performance Wheels, Cusco Suspension, Pioneer Audio, Razo Lighting, and Continental Tires. After seeing this kind of effort put into the new Civic we can only imagine what kind of resurgence we will see in the Honda scene.

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#3 – Honda Civic Type-R Concept & the Honda Civic Variants

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The Civic Type R Prototype is all kinds of crazy and we love it. The visual differences are instantly obvious, but the most impressive part of this car is it is all functional. The wider fenders accommodate a larger tire for additional grip while the splitters and diffuser aid in down force and overall aerodynamic efficiency. The 3 tail pipes are all completely functional as is the hood scoop to feed the 2.0L Turbo motor. Numbers haven’t been officially released but the European Type-R makes 306 horsepower and there are rumors that there may be a 340 horsepower version.

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#4 – Vossen Wheels

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Vossen Wheels has been an industry leader for years in the aftermarket wheel industry. STILLEN has been privileged enough to work with them on several projects and are always blown away with how they are always innovating. This SEMA Show they debuted their new 3-piece forged series which blew us away. The detail and options available are amazing!

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We also love the Vossen X Work wheels. The collaboration of the two companies produced some beautiful 2-piece wheels that appeal to a wide variety of owners. We have seen them on a lot of Nissan & Infiniti builds that we have greatly admired.

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Vossen also debuted their “Wheel Configurator” which allows users to preview every Vossen wheel available on their car. It includes options such as Lowering, Camber, Vehicle Color, Wheel Color, Tire Size, etc. You can try it out from yourself – http://www.vossen3d.com/

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#5 – Garrett Turbo Systems

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Honeywell Garrett has been a leader in the Turbo industry for decades. While STILLEN has shied away from Turbos in recent history, the introduction of factory turbo cars from so many manufactures has allowed us to get back in the turbo game without violating EPA or CARB policies. Now Garrett is the manufacturer of the turbos in the new VR30 DDTT motor found in the Infiniti Q50 and Q60.

Knowing what some of their systems are capable of, maybe we will get the opportunity to work on some CARB Legal Turbo Upgrades in the future.

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#6 – NITTO Tire’s Drifting Huracan

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Nitto recently worked with stunt driver Stina Hübinette to bring us the drifting Huracan. It’s not everyday you get to see an exotic driven like this. Check out the video on youtube: The Hübinettes Star in #HuracánDrift

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#7 – Mazda Miata RF Kuro

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The Mazda Miata has been the best selling two-seater convertible in the world since it’s release in 1989. Mazda debuted their Miata RF Kuro concept as their foray into the sport compact coupe segment. While nothing is certain about production plans, the RF Kuro gives drivers a glimpse of what a coupe could be like and gives the Miata a new look that we are sure everyone is going to love.

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#8 – Ford Booth

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Ford is always known to have quite the display at SEMA. 2016 was an exciting year for them and their booth definitely showed it. Showcasing cars like the new Ford GT Racecar, the Focus RS (which is proving to be quite the little beast), and even a wide body Fiesta ST. Ford is definitely making their presence felt in the performance world and we look forward to seeing more amazing cars from them.

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#9 – Lexus LC500 F-Sport Concept

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We have all seen the Lexus LC500 in the media and at auto shows. However, we had the opportunity to see the F-Sport concept version in the Lexus booth. Aside from the bright yellow paint, this car really makes a bold statement. Lexus is definitely doing a lot to shape their image in a more “sporty” light. We didn’t get many details, but we liked what we saw.

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#10 – Ferrari-powered Scion FRS/Toyota 86

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When someone puts a Ferrari motor in anything it’s bound to grab some attention. This Ferrari-powered FR-S is absolutely nuts!

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That wraps up our SEMA 2016 Top 10. Stay tuned for our upcoming SEMA 2016 gallery…

The mecca of automotive enthusiasts (aka SEMA) took place on November 1st-4th in Las Vegas, NV. STILLEN & AP Racing by STILLEN had a solid presence this year. We debuted our new AP Racing Radi-CAL II brakes in Central Hall and even took home a Global Media Award for new product. What you will see below is our SEMA quick look- a summarized view of what went on.

The world debut of the AP Racing Radi-CAL II.

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It was a great honor to receive the SEMA Global Media Award!

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Tein Suspension’s Q50 featuring the STILLEN Aero Kit.

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The Seibon widebody Civic was a huge show stopper. AP Radi-CAL Brakes gave this car some serious presence.

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SUBISPEED’s WRX running AP Racing Brakes.

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The Vossen GTI hiding AP Radi-CAL Brakes behind forged wheels.

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Nissan Maxima outside bagged with the STILLEN Body Kit.

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DINAN M3 sporting AP Radi-CAL BBK behind Vossen x Work Wheels.

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Radi-CAL II on display in the new product gallery

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K-Pax Racing with AP Racing brakes.

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Many automotive enthusiasts go to great lengths to remove all orange (amber) lights and reflectors from their vehicle. Now here is a customer who not only wanted to add some orange accents, but did it with some flair. There is a lot more to this Z than meets the eye though. Subtle clues hint at the potential of this 370Z…

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Tom S. brought his 2010 Nismo 370Z to STILLEN with big plans. He wanted raise the performance level of his Z in every aspect possible. We sat down and went through all the upgrades and how they would benefit the car. In the end Tom made his decisions wisely.

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He chose the STILLEN 370Z Supercharger Kit (407770NP) paired with the STILLEN 370Z SS Cat-Back Exhaust (504355) for added power. Taking the Nismo from 350hp to over 500hp is absolutely mind bending. With the added power from the STILLEN 370Z supercharger, the Z’s slight handicap in the straights is gone. Throw in the STILLEN Short Throw Shifter (452352) for quicker shifts and you’ve got yourself a competitor off the line.

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We all know the VQ37 has heat issues. We always suggest the STILLEN Setrab 25 Row Oil Cooler (400638) to keep those oil temperatures down and your Z out of limp mode.

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Any 370Z owner can tell you the car handles pretty well out of the box. However, that doesn’t mean we can’t improve upon that as well. The best handling upgrade for the Z is definitely the STILLEN Sway Bars (304375). With the car setup from the factory with safe understeer in mind, balancing out the body roll and oversteer/understeer dynamics is a huge improvement (read more about 370Z sway bars here: STILLEN Buying Guide – Aftermarket Swaybars).

We round out the rest of the suspension with the top of the line RS-R Sports-i Coilovers (RSRXSPIN134M). RS-R makes one of the best street performance coilovers we have ever tested. They are incredibly comfortable on the street but can still perform on the track and twisty roads. We left the ride height at the RS-R factory preset which gives us ideal suspension geometry for handling as well as plenty of clearance for speed bumps and steep driveways. SPC Front Upper Control Arm Kit (SPC72130) & SPC Rear Camber Arm Kit (SPC72262) were both installed to make sure we are able to set up our alignment perfectly to take advantage of all our new suspension mods and not burn through tires too quickly.

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What good is power with no control, and what good is going fast if you can’t stop right? Well believe us…this car can stop. Tom S. wanted the best, and he got it (with his own personal touch too). The AP Racing by STILLEN Radi-CAL Big Brake Kit (APR57100APR37702) in Solar Orange (custom option) are the finishing touch on this Z. With more stopping power than a GTR, controlling all the power we added is easy.

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This Supercharged Z is an absolute blast to drive. The car made 430 whp and 318 ft-lbs of torque on our Dyno (on California 91 Octane gas). We know the owner will absolutely love the results and we are looking forward to our next unique build. Who knows, it might be your car on our blog next.

If you have any questions about the car, its STILLEN 370Z supercharger, or any of the other parts shown please leave a comment, shoot us an email (sales@stillen.com), or call (800-576-2131).

SCOTT 370Z SC

 

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Tony Jackson's BMW M3

The BMW E46 M3 is probably one of the most iconic vehicles to come out of Bavaria. Not too long ago, Tony Jackson (Eibach Springs account manager) was in the process of selecting a new track vehicle to replace his Honda Civic which he had been racing, and winning championships with for almost 10 years. Tony wanted something rear wheel drive and figured he’d start with one of the best platforms available.

 

On the Track

In stock form, Tony was very impressed with the M3’s performance. Tony didn’t feel the car needed a lot to make it more competitive so he set out to add only the necessary modifications. Working for one of the largest suspension companies in the world, you can imagine what was worked on first. Tony worked with the Engineers at Eibach to develop custom rear shocks that he paired with Eibach Springs and Sway Bars. The improvements to the suspension helped push the M3 further along on the track, but there was still a major weakness in the car.

 

 

Slow down to go faster

Tony noticed after only a couple of track days that the stock brakes weren’t up to par saying, “I noticed that the pistons were seizing up from too much heat.” He elected to go with the AP Racing by STILLEN Radi-CAL Big Brake Kit. The forged Calipers, Bigger Pads, and J-Hook Rotors really allowed him to manage the heat in the brakes a lot better. This translated to being able to dive into corners much harder and not worry about brake fade well anymore.

 

The advantages of the AP Radi-CAL Brakes are quite extensive. The pressure forged calipers design is derived from the highly successful race Radi-CAL caliper. Utilizing an asymmetrical design the piston are positioned in a way to reduce torsional stress on the rotor as the pistons apply pressure under braking. This forging technique also allows for less material to be used than in traditional casting making the caliper lighter and stronger at the same time. The unique gives us the ability to have a larger brake pad annulus (radial contact patch) than normally found on similar big brake kits. This allows us to utilize more of the rotor surface increasing heat transfer and management (read more about it here).

 

The AP Racing Big Brake Kit comes with rotor options. For Tony’s racing focused uses STILLEN recommended the J-Hook Slotted Rotors. The patented design increases durability and performance. The J-Hook design gives you all the benefits of a drilled and slotted rotor without any of the downsides. Drilled rotors can potentially crack from rapid expansion and contraction while racing, and traditional slots create a less even heat distribution throughout the rotor. Because the J-Hook machining does not penetrate through the rotors and does not completely transverse them radially, they are phenomenal at withstanding harder driving and higher temperatures (read more about J-Hook Rotors here).

 

Tony gave us some lap time improvements of tracks that he frequents.

  • Buttonwillow Raceway – 0.7 second improvement
  • Chuckwalla Valley Raceway – 1.1 second improvement
  • Willow Springs – 1.5 second improvement
  • Laguna Seca – 2.4 second improvement
  • Streets of Willow – 2.7 second improvement

Everyone puts an emphasis on power, but a lot of people forget the slowing down (efficiently) can make you faster than some extra horsepower. Also consider the added confidence the driver has in their car knowing they can continually push to the limit and the brakes will be there to support them.

More power is still nice…

We don’t want anyone to think we are against adding power, and neither is Tony. That is why he went to our friends over at Magnaflow and commissioned them to build a high flow and light weight single exit exhaust to help the powerful 3.2 straight six breathe a little better. The whole system saved about 50 lbs and really helped open up the top end of the power band.

 

Wrapping it all up

All these modifications are great, but let’s not forget what makes all these upgrades useable. Connecting the all this horsepower, suspension, and braking performance to the ground are Nitto NT01’s wrapped around a set of Volk Racing forged ZE40’s.

 

STILLEN Partners with the best companies in the industry for all of our projects, so it is no surprise to see that Tony did the same with his M3. Tony is currently leading both Super Lap Battle and Global Time Attack series in points (for his class). This is one of our favorite examples of someone who understands that racing is about balance and synergy.

If you have questions about our BMW E46 M3 Big Brake Kit or any of our Big Brake Kits for other makes and models please visit our website (www.stillen.com) or give one of our performance specialists a call at 800-576-2131.

STILLEN is proud to announce that new applications are now available for the AP Racing brake kits, which include applications for select Chevrolet and GMC trucks and SUVs! We now have brake kits for the Chevy Silverado, Chevy Suburban, Chevy Tahoe and GMC Sierra through the 2014 model year. For a full list, see below or visit the AP Racing AP7500 brake kit page.

Why Upgrade to the AP Racing Brake Kits for Chevy & GMC Trucks & SUVs

Like the other AP Racing big brake kits, these kits feature 2-piece rotors with 6-piston calipers that are made of the highest quality materials. Additionally, these slotted & cross drilled AP Racing brake kits include DOT compliant and TUV approved stainless steel brake lines, which provide a noticeable improvement in stiffness and pedal feel. Here are a few more reasons why we feel the AP Racing brakes are the best brakes available:

  • Features curved vane rotors for maximum cooling and reduced unsprung weight
  • Specially designed to work with OE master cylinder, ABS, traction control systems
  • Brackets and hardware are constructed of aerospace grade materials
  • Available with red or black calipers
AP Racing AP7500 Big Brake Kit in Black

AP Racing AP7500 Big Brake Kit in Black

AP Racing AP7500 Big Brake Kit in Red

AP Racing AP7500 Big Brake Kit in Red

Note: To see if this brake kit will fit your wheels, use the STILLEN brake profile template to check your brake kit/wheel compatibility.

AP Racing AP7500 Brake Profile

AP Racing AP7500 Brake Profile

Complete Big Brake Kit Applications:

The AP Racing AP7500 brake kit fits the following vehicle applications:

  • 2007-2014 Cadillac Escalade
  • 2007-2013 Chevrolet Avalanche
  • 2007-2014 Chevrolet Silverado 1500
  • 2007-2014 Chevrolet Suburban 1500
  • 2007-2014 Chevrolet Tahoe
  • 2007-2014 GMC Sierra 1500
  • 2007-2014 GMC Yukon
  • 2007-2014 GMC Yukon XL 1500

Note: The AP Racing and STILLEN team is hard at work updating applications for the AP Racing AP7550 rear brake kit for Chevy and GMC trucks and SUVs. The brake kit will be available soon. However, if you would like additional details, please call (866) 250-5542 and we will be happy to answer any questions you have.

Next Steps

If you’re ready to upgrade your Silverado, Sierra or other GMC/Chevy truck or SUV with a new set of AP Racing brakes, please visit www.stillen.com or give us a call at (866) 250-5542. Also, if you are looking to get your brake kit professionally installed, be sure to consider the STILLEN performance shop in Newport Beach/Costa Mesa area, which specializes in big brake kit installations.

STILLEN is pleased to announce the release of our new website, www.apradical.com featuring information on our brand new line of AP Racing Radi-CAL Big Brake Kits by STILLEN.  The micro-site has been designed with the user in mind with user-friendly navigation, bold colors, stunning photography as well a contemporary design. The newly designed Web site went live January 31st, 2014.

AP Racing Rad-CAL by STILLEN homepage image

Design, Functionality, Technical Information & More

The site has been broken down into several sections that clearly highlight the different features, functionality, applications and technical information on the kits. It features expanded content and streaming media including an in-depth video filmed in the STILLEN performance garage. Also included is an “About Us” page that provides information on both of the major companies involved in the production of these big brake kits, AP Racing and STILLEN, as well as an applications page in which every viewer can see the list of vehicles this braking system is available for.

AP Racing Rad-CAL web site image

The apradical.com site aims to extend its reach to a broad audience of brake professionals, enthusiasts and wholesalers. Online visitors will now experience a more vibrant and seamless view of the entire Radi-CAL Big Brake Kit system with photography showing the calipers and discs in fine detail.

AP Racing Radi-CAL by STILLEN application page

In addition to the huge catalog of beautiful photography, the micro-site showcases pages of technical information our customers have been asking for since we released these brakes at SEMA last year. The site has been organized to provide quick and direct access to all of these resources for all audiences.

AP Racing Radi-CAL by STILLEN contact page

AP Racing Radi-CAL BY STILLEN Informational Video

Learn More About AP Racing Radi-CAL by STILLEN

For more information about the AP Racing Radi-CAL brake kit by STILLEN and to read our full white paper on the Radi-CAL, please visit our website or call us at 800-576-2120 and we will be happy to answer any questions you have! Be sure to check back regularly for information on new applications and to check out new images and reviews from our happy customers!

It’s that time of year again.. thousands are burning up the 30+ miles worth of carpeted aisles at the infamous SEMA Show in Las Vegas!  The STILLEN Team is no exception, with a big booth introducing the world to the new AP Racing Radi-CAL line of calipers used in the STILLEN-engineered Big Brake Kits.

AP Racing Radi-CAL Brake Caliper Launch at SEMA with STILLEN

These new Radi-CAL road calipers get there heritage from the racing Radi-CAL high performance calipers launched in motorsports in 2007, which have been dominating the likes of F1, F3, NASCAR and countless others.  This new caliper design features a 2-piece aluminum body with H-structure, and a non-symmetrical design developed to have a large reduction in mass yet improved resistance to braking torque.  Another benefit is increased caliper cooling surface without decreasing structural rigidity.

AP Racing Radi-Cal By STILLEN with Black Caliper

STILLEN has developed applications for many popular setups, which are listed below, and have plans to continue to grow the line.

We will be releasing much more information as we return from SEMA, and the response has already been overwhelming at it’s introduction!

When nothing but the best will do, serious customers look to AP Racing and STILLEN.

STILLEN / AP Racing Booth at SEMA 2013

STILLEN / AP Racing Booth at SEMA 2013

Radi-CAL in red

 

Radi-CAL in black

It’s like Christmas morning inside our warehouse today. We just received a shipment of over 17 palletes of AP RACING product. Everything from full big brake kits to rotors to hardware to everything in between. We can’t wait to get everything unpacked and shipped out to you ASAP.

This isn’t even HALF of the AP Racing shipment and we are already running out of space in the warehouse.

 

For those of you waiting on your AP RACING back orders to arrive from overseas we got many of you covered.

Make sure to give our specialists a call ASAP to pick up your AP RACING goodies before they all disappear. This stuff always moves fast.  (No pun intended)

STILLEN

(800) 891-1058

Or you can always visit our AP RACING section of our website for all your braking needs.

STILLEN is proud to announce the release of the AP RACING 4 Piston and 6 Piston Big Brake Kit for the Scion FR-S and Subaru BRZ.

The 4 Pisont front kit under part number AP3120 uses a 330x28mm two piece disc and you have the option of getting either crossed drilled and slotted or just Slotted. You also have 2 color options when it comes to the 4 piston caliper: Red, or Black will look really nice in the wheel well of any BRZ / FR-S.

 

RED

 

BLACK

 

If you’re looking for the next level of braking performance we also offer the AP6100 6 Piston kit.

The  AP6100 kit uses the AP RACING 6 piston caliper with larger 355x32mm two piece discs. You also have the option of three different Caliper colors, and two rotor styles.

As you can see, we also offer the Slotted and Drilled, or just Slotted rotor options for the AP 6100 brake kit rotors.

Both of these AP RACING kits bolt up to the factory locations and are designed to work well with the factory ABS systems and brake master cylinder. They also feature dust seals over each caliper piston to ensure reliability and high performance for as long as you own your vehicle.

If you have any questions or would like more information on the BRZ / FR-S AP racing Big Brake kits please give us a call

(800) 891-1058