I bought the M2 a while back and have never regretted it once. It has a great sound. Quiet (louder than stock though) but deeper at idle.

Shawn

 

I sure like reading these good comments about the RB dual tips, because I've got one sitting on the floor waiting to be installed.

Why do they go to so much trouble to polish the muffler? I don't know if I should hang it on the wall, or the car. I hate to get it dirty

Cheers,