evcomp

I put Flowmaster 70 series on mine and I have an 8.1L. I also went with smaller chrome tips and not the 3.5 inch tips you normally see sticking out.. This also helped keep the noise down. Instead of running them all the way out the back, they are bent to exit behind the rear wheels. You can hear it when you get on it, but cruising has a quiter factory like sound.