greerracing

I have a upp kit which utilizes the stock ls2 manifolds and am wondering when the manifolds will be the limiting factor of flow. Also ls2 manifolds don't fit on 6 bolt heads and wanted to know if anybody made shorty headers for the c6.

Unreal

Probably in the 1200-1500rwhp range. The turbine wheel and turbo housing is way smaller than the exhaust ports and will be the limiter. I've seen plenty of cars make huge power on stock ls manifolds.

SLPRC5

So true (LS2) on stock exh manifolds...I gained 7RWHP with a set of LS7 exhaust manifolds with the cats and H pipe... a set of LS7 with cats and "H" pipe can be had for around $400.00