Flowmaster Question

[beav626]

I was having a rattle when accelerating around the 2100-2500 rpm mark.

I took the truck by my muffler guy, he and I thought it was a heat shield or something...

Turns out that one of the baffles in the muffler cm loose. when you press down from the top of the muffler the noise goes away.

Anyways Im running Flowmaster 50 series that the previous owner put on...

How likely is i that I will be able to warranty the muffler that I have so I don't have to shell out another 170 for a new one?

 

[WICKEDOWESIX]

Yeah Flowmasters are prone for that because they rust from the outside and more from the inside from condensation. Save the hassel and just put a Magnaflow muffler on there. Its all stainless steel construction and there is nothing to come loose or rust out.