Hey Mike....I have a 2010 SESG Candy Concord myself. Have had it a week and a half now, and hated how quiet it was straight from the Motor Company. This is my 14th Harley, so believe me.....I've tried just about every muffler & exhaust on the market at some point & time. Still have my 2006 Streetglide with true dual Rineharts on it, and even though they sound good.....I wanted something a bit more mellow, but with a good deep Harley sound to them on my new SESG. I am running the Fullsac 2" inch CVO muffler cores in my stock muffler bodies....those big 4" stock mufflers look good on these bikes I think & the sound from the Fullsac 2" cores is AWESOME!! Nice deep throaty sound like a big block chevy, but not obnoxiously loud.....and at any cruising speed, they mellow out very nicely, making enjoying your stereo a pleasure. Am going to send my headpipe to Fullsac in the near future to have the Catalytic Convertor removed & purchase their TTS Tuner with Map already written & dynoed for this exact application. Check these guys out at Fullsac Performance & read what they have to offer. Rememeber.....loud does not necessarily mean performance. Fullsac is about mellow performance, and they've done their homework.