I gained a full 10 whp and about 5 wtq with the MSDS headers and ypipe. I have an intake (injen) SVT UIM, TB, and borla exhaust also. So Id guess you would gain about the same as me.

Jon - NJNECO - Simply Domestic 2000 Silver Frost Cougar v6 MTX Dyno Tested 173.6 whp - 161.2 wtq Visit www.mastamoon.com for Details!