Gator0302

I have a magna flow high cat, 2 1/2" piping and a wicked flow muffler. At high rpms there is a rattling noise coming from the muffler. Anyone experience this or know if the muffler is defective or is just normal do to higher flow from the cat?

i-VTEC_DOHC

its probably just how the muffler sounds.
why a wicked flow??

Gator0302

I know.... The muffler shop guy said it was just as good as all the others and I went off of his word/experience. But I hate the rattling and will probably change out the muffler. But I want to know if its just the muffler or if it is also the cat. I don't want to buy another muffler and have the same noise.

miketat594

some cheap mufflers , start to fall apart on the insides and will almost sound like you have sand in them if you tip it , I would look for a name brand catback from a reputible company.. My guess would be the muffler. I have vibrant header with high flow cat and skunk2 catback and have no rattle's..