Hi houston

I have a P3XS and was just wondering if the 9901 and 41021 pipe/header set-up would be a good choice. I am mainly looking for good runtime (10min+) and a bit more top end without losing bottom end. I was also wondering if i should also change my venturi from the standard 8mm (red) to the 7mm to also improve runtime and top end.

What are your recommendations?

Thanks,