I am having my stock tired engine replace with all forged components, PI heads, PI intake, smaller blower pulley, 60 lb. injectors, etc.. I still have the stock exhaust manifolds, MAC H pipe with cats, and MAC Cat back system. I am considering throwing long tubes on the car while the motor is out with off-road cats. It would cost me an additional $800 for all of that. Do you guys think it's worth it? From research done that any of you have read, is it worth it? Or, should I save the extra $1,000 and put in the intercooler and keep the stock exhaust manifolds? I'm torn between the two!
