Just pre-ordered the "new" 2nd gen Stillen catback (with carbon fiber tips) from my dealer, 4-6 weeks delivery. Stillen "re-voiced" for more growl, HP gains 29hp.

Saw this on **redacted**, the engine is a beast....

Quote:
Originally Posted by Team_STILLEN View Post
This motor is definitely underrated. The factory claims 400hp and 350 ft-lbs as the output at the crank. Assuming 15-20% drivetrain loss (7 speed auto and runflat tires). We estimate the engine is actually making 440-470 HP and 410-440 Ft-Lbs at the crank. Keep in mind this is also on California 91 octane (the worst gas for making power).

Nice..........

You going with the 3 inch Down pipes too?

PostalsQ wrote:You going with the 3 inch Down pipes too?

No, I wish I could but they void the warranty. I'm not a racer, just enjoy high performance vehicles....

I'm sure with the new exhaust and after tuning you'll notice a gain