Thanks for the answer Rick, just for grins, how much RPM do you see now. My understanding with the speedtuning is 6500 approx instead of the 6200 we see now. Just curious if you know. Wayne I agree with you, 10Hp is about what I expect, the guy at speedtuning wants me to put K&N's in at the same time. I don't really want them, as I don't like oil filters. I think he feels that together it will be more noticable. As I said above, I really would like a set of tuned headers and a true dual exhaust. A turbo or supercharger would be even better, but we'll see.