I put flow masters on my MM awhile back. I luv the sound and it has some more punch to it. But here is the problem. After about a month I started to get an anoying rattle from the rear end, buzzing noise! I took it back and he said when tail pipes heat up they move a bit. So I when back again when the rattle came back and he said it wasnt the flowmasters, must be sumtin else!
Is thier anything I can do to fix this prob or what?????