two bros pipe and wiseco high comp piston

[fast raptor]

i am wondering if anyone has a 13:1 wiseco piston installed in there yfz450. what kind of hp does it give u and were does it give it to u. also does anyone have the two brothers M-7 full system installed.

i just installed the 13:1 in my 450. i noticed a difference everywhere. i also installed a ron woods air box eliminator and hot cams, the thing rips. i dont know about the exhaust i have a curtis sparks on mine

[fast raptor]

how would i be able to make it have as much power as a mx bike