to be honest i dont know what the p5 runs like does it favor the top or bottom
if i dont race this weekend i may put it on and break it in
i currently use the 053 pipe but i have a 086 thats in so so condition
by the way i have the new p5 with the purple head supposed to be 2.6hp and 31k rpm vs the blue head was 2.1hp and 29k rpm
i was thinking the p5 would be a bottom end engine so i would want a pipe that was good for medium to high rpm right?