I must admit I enjoy flying under the radar with my stock quiet exhaust system... But for the sake of argument what sort of real world power gains can be found with......
1. Stock muffler mod to more of a straight through flow
2. A set of new cans like Akrop's or something made to fit.
3. A full on Staintune setup with H pipe.
I have no interest in crazy loud systems cuz "Loud pipes DON'T save lives..... They piss people off" LOL