Originally Posted by grumble
Magnaflow Competition Axle-back. You won't be sorry. Easy install and sound great. Had them on my '13 GT Premium. I've got a set of full cat-backs ordered for the new S550.
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How's the
Magnaflow Competition Axle-back working for you? Is it better than the Street Axle-back? Some say that the street has deep and muscular sounding when on the gas.