I'm running the high pipes, ecu, open airbox, and have no problems. It's definitely louder than stock, but not nearly as loud as the older model SS. I rode behind one with Forza cans and could barely hear my intake over his exhaust. I also have the rear peg adapters. I was very apprehensive about mounting them due to the fact that it creates a long lever on a very weak-looking mounting tab on the frame. I just make sure the GF knows not to put a lot of weight on them when we ride. As far as appearance, they look a little odd, but I've gotten used to them over the last several months. I don't have any pics, but if someone wants to see them I'll take a pic and post it tomorrow or something.