ballance pro race series or sport power

[Leschj03]

What is the real difference between the hmf sport power full pipe and the ballance pro race series if any at all. would it be worth buy that ballance race pipe of the regular pipe.

[Grizzly450R]

I have a Bill Ballance on mine and love it.. Sounds great and it not to loud...Sound is perfect. For power i could feel a little difference.. Pipes arent goin to do a whole lot.. I just have the slip on which i think is all you need.