I currently have 60#'s, 2.6 pulley, intake, shorty header, HF downpipe, GMPP cat-back, ZZP tune, and overdrive crank pulley. Cooling mods are dual pass version B and water/meth. I am boosting over 20psi. (I know thats getting up there). What can I do to improve power & or safety?

1. change cat-back from 2.25 GMPP to something larger.
2. Go with a ported head.
3. back down on pulley size to.....
4. other


thanks

 

2.6 is a bit small and unsafe from what i hear.. i run a 2.8.. for u i would suggest get a full size header and atleast a 2.5 exhaust,, especially when running a 2.6

 

get a nice 3" exhaust and h/e and port ur head

 

I already have the H/E upfront too. I was thinking porting may help.

 

really the cat back would be your best bet, running a 2.6, deffinatly a larger catback.. nothing more than 2.5" though.

i woudlnt go any smaller than a 2.6 if your trying to stay safe.