would it reach about 330 or so RWHP? More? less?

When I say full exhaust I mean including high flow cats.

Thanks,
Kevin

 

Yes if that includes headers. I would say 310-320 tops without.

 

yea I am considering a 99 Trans Am and want to get it to a level to beat a stock C5 (01' + C5's) without getting into the engine at all. I want to maintain 100% reliability and driveability. Obviously I will have to deal with the rumble of the exhaust though, whixh have dealt with for the past 7 years in my modded mustang. Don't get me wrong I often love the rumble, but sometimes I just want quiet time When I drive my friends 01 C5 its nice and quiet and comfy but I want to beat his ***. That car moves though.

 

LT headers is going to make a bIG difference. Other than that lid and muffler on my Z28 made 307/321.

 

with headers and lid and cutout u should see 320-330

 

I put down 291 with a lid (and hi-flow muffler if that does anything). That's with a 99 TA and an auto tranny.

Nate

 

With lid, K&N, ported MAF, freebies, and a cutout I put down 324hp 336tq. Working on getting headers next month then I will probably dyno again sometime after that.