Originally Posted by chaz517
But besides the mpg, did u notice a big difference in power?thank u
Yes, I notice the power & it's nice & smooth. But in all fairness, I have only driven on TA's (Mike) custom 1mm stage 2 tune.
I went from Cobb 93, stage 1 tune, My GT was all stock, except for K&N panel filter & Sti 6MT.
To stage 2+; GMS Crossover & UP pipe, & LW crank pulley. Invidia DP & V2 cat back. Perrin TIH , K&N Typhoon intake & Racer X FMIC.
The power start coming on about 2500rpm @ 12psi & hitting almost 17psi @ 2800rpm, peaking at 18.5 psi. @ around 4500rpm. The motor revs. smoothly all the way to red line. Where boost tapers down to 13psi. On top of that, I avg. 24mpg.