I have +4 degree key , milled head , v-force , 28 bored to 30 pwks ( getting soon ) k&n filter and powerlid , lightend flywheel , what would be a good pipe , i'm desiding between t5's or rockets , i also plan on porting some time . i do alot of open throttle trail ridin and dumes a couple times a year. what do you think i should go with