One or two of you asked that I let you know how the Rineharts sound. They arrived and I installed them a couple of days ago. Couldn't take a ride until yesterday because of the rain. These are the 4-inch slip-ons. The bike has no other performance mods. There was no difference at all that I could tell as far as how the bike performed. No popping except for an occasional pop, but the stock mufflers did that too. A bit quieter than I thought they would be. The bike I just sold was an 09 SG with V & H Basic Slip Ons. I would say the 09 was about 20% louder. But to be fair, those slip ons had no packing left in them (I looked) and had V & H Dresser Duals. My neighbor, who has a SG, said he thought the Rineharts sounded good. Since there were no performance issues, Iwill wait until spring and get the headpipes, a tuner and a professional tune. Thanks to all of you for your input.