I...I...I got Nothin
I just read a post over on LS1.com. A guys buddy installed JBA shorties and claimed he went from around 303 rwhp to 337 rwhp. Are the GTO manifolds THAT restrictive?
Somebody around here gained like 50HP going from stock to JBA's, exhaust, and dyno tuning. I'll try and find the post...gtodoug said:No way are they that restictive. I only gained about 10-12rwhp by switching manifolds. That is with a tune.