I have a 98 CSVT with kkm intake and Brullen cat back exhaust. How much HP do you expect the MSDS headers to produce with my intake and exhaust. I know they say it will produce 30 HP on the cougar.
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.