.. Ok here's the scoop , my friend stop by with his new Camaro witch had MBRPs on and no headers and just sound awesome ! Now I no a Chevy doesn't sound like a Dodge nor does a Ford sound like a Chevi , I get that but his car just sound mean !! And like you no one that I no has a Challenger with MBRPs I heard Corsa , did not like and thay drone : ( I here the Mopar ones and not inpressed : ( to quiet for me , and don't get me wrong I like my car with no mufflers ,but his car just sound good !! So I check out some of my FB friends who had the same set up and all love it so I checked out you tube , and yes they all kinda sound the same ,but I took a gamble and got them .. You wound not believe how great they sound . And no droning !! Plus there polish stainless steel ,they even look awesome !im not good on the computer in any way I post from my phone if you want friend me on face book , check out my wall , and I can send you vids n pic : ) and you can post any you like