After removing the bulky OEM beast from my RAM 1500, I replaced it with one of these. The original muffler was rusted through and had several holes, so it was quite noisy. I put it on and what's the difference. My friend said she didn't notice when I pulled up and the neighbors smiled as I drove by. It still has a nice throaty sound but is a lot less loud. People at the driveway windows can even hear what I'm saying without asking me to repeat it a few times or telling me to turn that thing off so they can hear. :)