Usually, when an airbox is gutted or even an cold air intake is added, HP gains are barely noticible. In some cases, power is lost. example, my friend drives a 2004 Corvette 5.7L. Very nice car, K&N intake with three inch pipes all the way. Sick sounding bastard. Slapped it on the dyno barely hit 300 HP and 290Lb. FT. Very very depressing. slapped the stock air box and exhaust in, 350HP 345Lb.Ft. This happened because the parameters on the PCM were tuned for the stock parts. Now, he called SCT and asked them to send him a flasher to include a 100 Octane tune, Track tune, and an agressive street tune that included his exhaust, intake, and a cam he bought. Hasnt brought it to the dyno, but i tell you what, the street tune will pin you to the seat.
Moral of the story, if you wanna feel the power, flash the PCM.
1998 GMC Sonoma Ext. Cab two seater.... system is a must!
1972 Camaro-The Beast
2008 Chevy silverado. 3-5 drop. 18'* nice grill...nice truck...
1974 Datsun 260ZR- 94 RB25DET Swap... Stupid fast!!!
Originally Posted by Bwayney
This is awkward...