This porting package is not hi-strung, but rather delivers power from bottom to top. This porting package is recommended for expert or A riders because it supplies and maximizes big power gains in midrange and top end. One of PSI's experienced porters will skillfully blend the proper specifications to supply you a much livelier powerband that rips from bottom to top end. Much more extensive work is done to this package and a PSI head mod is a must. A Riders and Pro's.
Extensive work is performed throughout the cylinder and is designed for race fuel only.
We highly recommend an aftermarket pipe of your choice to be used with this kit. One of PSI's ace porters will manicure this cylinder to pull every last ounce of HP from it. This Stage VII porting package is designed around the riders choice of performance. Much time is spent on the details and we guarantee your satisfaction. We have worked with many top Amateur and Pro Riders in our 18 years of business and understand your need for speed.