Originally Posted by Jerm13

I have been asking the same question as I have a P5 on the way now. From what I was told, the 2058 is great for smoothness and fuel mileage but its also is a power house. Its said it will provide plent of bottom end and screams on the top.

Now I haven't run it on a P5 but I know for a fact that is does exactly that on Werks and Orion motors. I guess we will see soon.

But if you want a Nova pipe, the 9901 pipe with the 41021 header is said to be one of the best all around set-ups for power, smoothness and fuel mileage.