Reliability on the track, and I can feel the 60-70 rwhp over stock. I've broken lots of other stuff, but the engine has been damn dependable.
Stillen intakes, 400
Momentum headers, 700
Test pipes, 150
Invidia Exhaust, 700
Glasspacks to replace mufflers, 50
Z1 tune, 700? (I got a deal as a vendor of theirs, but I think that's what it is.)
so 2700 for 70 hp, not bad.
Plus the GTM Kit is vaporware at this point