intake = good cat-back exhaust = good hi-flow cats = good (although I haven't seen dyno evidence between them and test pipes to know if there's a diff) pipe from cats to turbos = downpipes = good clutch = doesn't matter flywheel = doesn't matter (well, hp gain not noticeable)You mention 555cc injectors but ask how much more you would get with a 'chip'. I'm sure you realize you NEED a chip t run 555cc injectors in the first place. With that combo and running 15 - 17psi you might hit 350rwhp... it all depends. Z's vary widely so I'd say you'd land somewhere between 325 & 340... if you hit 350, be very happy. You didn't mention underdrive pulley. That's almost guaranteed 12-14rwhp gain.
Meddle not in the affairs of dragons, for you are crunchy, and good with mustard.

 |