tjZ06

As the title says, what kind of RWHP/RWTQ are people seeing with just a Cold Air Intake, Cat-Back exhaust and a tune? Better yet, post up your dyno graphs if you have them.

Thanks,
TJ

Translator

I would say the average for a MN7 on a dynojet corrected to SAE 5 is around 430 - 435 RWHP and around the same TQ numbers, with a tune, CAI, and cat-back. Those modifications do not increase power much at all. Headers will show higher gains than a cat-back, but not that much for a virtually stock car. The LT1 manifolds actually flow quite well. People add headers mostly for the sound.

tjZ06

Thanks! And I probably should have specified I'm mostly interested in MN7 cars like you posted.

Thanks,
TJ

marcouvo

According to Trifecta and Diablo a tune alone ought to account for 20 to 25 HP increase at the flywheel. On a stock motor without a tune, a CAI and a catback might add 10 HP from results I've seen on the forum.

CampyWampy

I made 418whp 441tq

2014 GMC Sierra Z71 6.2 L86(LT1)

Intake/long tubes/exhaust/Pat G Tune

Made 363whp before tune then, 389 with just intake and tune...then final numbers after FBO was 418/441

robert miller

That is some good numbers for what you have...

tjZ06

No other results out there for a CAI/Cat-back/tune M7 LT1?

-TJ