I've got a 2006 G35 high rev 6mt. It's got a full Vortech Centrifugal supercharger set up(charger, fmic, piggy back tune, fuel pump, etc.) at the lowest pulley-6psi. I've put on d.c. headers, high flow stillen cats, stillen cat-back, kinetix high flow polished intake, one piece charge pipe, mishimoto oil cooler, mishimoto oil catch can, JWT clutch and lightweight flywheel package, stainless lines galore, wilwood master cylinder, Nismo finned rear diff. cover....and I'm thinking that's it for performance.

My question is; What can I upgrade next that will not only make it faster, but more reliable every time I hit the gas? It's getting better with each upgrade, but I'm not completely happy with how sometimes it gets up and goes, and other times it feels sluggish and not as potent. Might just be me, but this is my daily. I know her well enough to know when something's not spot on. Suggestions? Colder plugs rather than stock? Fuel upgrade and retune? Lay it on me!

Thanks for reading,
~Jake

 

Jake I see two things that should help your performance, Stillen exhaust...their y-back POS made by Magnflow? You could have made far better choices like a real dual system from HKS or Motordyne! Having lower differential gears will also help your off the line performance. Most everyone I know has already made that upgrade...Gary

 

Agreed! The exhaust was the first buy I made years ago. Not very happy with it. As far as gears go, I had been thinking about the 3.9 gears. Which do you prefer and by whom?

 

If you're still on stock plugs then a 1 step colder plug is recommended.