I've got a hytech replica header, magnaflow direct fit catalytic converter, and a fujitsubo legalis r cat back. I notice at low rpms that it sounds a little raspy/ weed whacker-ish. Not at all what i spent $900 on. I need to take it back to get the cross member notched in some more, but I dont think thats where the rasp is coming from. It seems to be coming from the cat. One of the guys at the shop said "that cat is going to be very restrictive because it's stock diameter" but i didnt think it would cause a raspy sound. would anyone recommend a test pipe after I get my car inspected? Thanks!

anyone? just looking for some advice from someone with experience

I've heard the test pipe is a must for the deep throaty sound. Wish I knew more, mine's stock :(

I have a test pipe on mine, but my motor is far from stock.

my best friend and I installed a mugen header, magnaflo cat, and mugen twin loop on his car, no rasp.

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hey, thanks for the reply. I have pretty much the same setup; hytech replica magnaflow cat and fujitsubo legalis r. I figured out i had an exhaust leak. no more rasp