How much more power are you getting if you get the full system instead of a slip on

 

you will feel alot more power off a full system then a slip on. but if you get the full system then you will probably want to get it jetted and mabye a k&n air filter. that will give you the best results. but if you just want somthing to tinker around with then a slip on would give you an extra boost.

 

aton...from a slip on to a dual system i whould think you whould get a good 8hp