Quote:
Originally Posted by KaienZ34
^  4hp  not sure if serious or just ... |
Are you implying that it makes more power with just the mufflers replaced with say an HKS exhaust? I'm not talking about replacing from the manifolds back. Just the muffler section.
The stillen exhaust nets you 18rwhp for a full exhaust.:
http://www.stillen.com/product/exhau...dd4db7onron0e5
Maybe 4hp is overstating it??
R.K.