ibkevin

I know, I know, this has been beat to death and back because I've read much of the archived stuff.

Just a quick answer whether you have heard one in person, or on a vid, or whatever. If there's a #5 in your response, please list the muffler.

Hopefully this will help folks for the next few months.

turbite

I havent used any of the others, but my borla cat back is fairly quiet, even with a test pipe.

MarkRobinson

Probably the magnaflow, but my muffler ought to be simliar & looks more OE In my opinion. See other post/topic: 3" exhausts.

HIGHBOOST

Usually low backpressure and noise level are inversly related to each other