Quote:
Originally Posted by radz282003
 Now, if I started with an LSA in the car, and made 550 RWHP in the car with some minor bolt-ons I know your 4.6 likes, then I'd be happy. However, shelling out all that $$$, then spending more money and only making 550 would not be cool. If the ZR1 only (I say that very loosely) makes about 500+ RWHP, I'm sure that LSA is only (again - loosely) good for 450. I'm just looking for about 550 at the tire and would be super happy with that, and if I could add shorties, a catback, pulley, tune, and CAI, I'd be completely happy with my setup. I want to stay legal where I am and I'd have no problems sportin' these mods'. But, like you said, if I were limited to 550, I wouldn't be too happy. Hopefully someone will come out with that modular pulley set-up like you guys have on your cars. That would be pretty dang cool.
Easy now. It could be he mis-spoke.
Respectfully... 
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shorty headers will get u absolutaly no hp gain. gm has been designing exhaust manifolds that are equal to or better then any aftermarket shorty. so spending money on shorty's is a waist unless u want the bling factor. now i know u live in cali, as do i. and with an aftermarket s/c like a TVS, a good intake exhaust system and maybe a small cam will get u to ur goal without having to spend money on shorties. now a cam is already illegal in cali. ur best bet is just go ahead and get some LT's a catted x pipe, dont drive 60mph in first gear around town. if ur worried about smog. find someone who will over look visual, there are plenty of smog shops that will overlook visual inspection, as long as u have cats theyre happy. cuz a smog shop can technically fail u for a CARB approved intake or catback, cuz its an aftermarket part.