Mustangmaster

I have a V6 2006 Satin Silver Mustang and installed a single Flowmaster muffler and it's louder inside the car than I'd like it to be. I looked at Dynamat but ran across www.quietcar.net. You paint it on as many coats as you'd like. The more coats applied, the better the sound blockage. I am planning on doing the trunk of the car and maybe where the back tires are. Am I going to be a guinny pig or has anyone else used QuietCar?

Racefiend

I used it on my Supra. It's pretty easy to use. Just make sure you mask off a lot, because it splatters a lot. As far as performance, I did it in conjuction with a lot of other sound deadening, so I can't comment on it alone. But my car ended up tons quieter