We recently had a G37 at the facility, and we were able to do some testing on the G37 Headers, Cat-Back Exhaust, and High-Flow Catalytic Converters on the same vehicle to compare versus stock.
PDF Dyno Sheets are available below:
STILLEN G37 Cat-Back Stainless Steel Exhaust
Part #504400 – Dual Wall Straight Cut Tips
Part #504401 – Single Wall Slash Cut Tips
18 WHP Gain
STILLEN G37 High-Flow Catalytic Converters
Part #503436 – Metallic Converters (Pair)
14 WHP Gain
STILLEN G37 Stainless Steel Headers
Part #508387C – Ceramic Stainless 409
Part #508387S – Stainless 304
Part #508387N – Stainless 409
14 WHP Gain
These parts are all in stock and available for immediate shipping. Pictures of these items are also below.
- G37 Exhaust Research
All items have been discontinued at this time, blog article remains for educational purposes.