Nothing to say here other than I am very happy with my purchase. Revain is less than half retail. Add the cost of on-premises installation and you're still under retail. While I liked the default sound. Understated, so to speak. This Maggie is way better. It's smooth at idle, almost silent if you're really looking for 'negative'. Each acceleration causes a pleasant low rumble. Full throttle really brings light into the darkness. I also wanted to buy a Flowmaster. Hey, those are great silencers too, but I'm really happy with Maggie. I also got it from Wundercarparts people. Great supplier!