I have a 04 and the motor is still 88", I picked up a set of stockers from a 2013 103" and there is a pretty big difference between these and the 2004 stockers. The late model are lighter and have a larger hole throught the muffler, I figured mufflers for a 103" would act like a more performance type on my 88" motor, I also have Supertrapps and really cannot tell a difference in power .

 

Same here. Now that I can actually hear something besides exhaust (after installing Supertrapp Supermeg) I hear the motor rattling. It's going to take some getting used to.

 

Interesting chart. Thank you for that.

 

I would think you'll have a hard time finding anything quieter than what you already have

 

I just switched over to the new Fuel Moto E Series 2 into 1 exhaust. The last 30 years of of running loud exhaust have taken a serious toll on my hearing and I decided it was time for a change

This is a great system. Significantly quieter than the true duals I have been running but still produce good throaty sound. Best of all I got a noticeable improvement in performance especially on the bottom end. I think this pipe will produce numbers comparable to anything out there with only a fraction of the noise