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Originally Posted by Lifted07Duramax
Arent these still like $800?
Im used to corvettes, and trucks where I can go to the exhaust shop and say hey cut my stockers out and put flowmaster or magnaflow in place and be out the door for $250
Arent there any mufflers that can do that? Or does it need to be an axle back setup with piping already?
Plus I havent seen too many dynos on what more free flow mufflers gain in power wise. Not that it matters to me but of course Id like to know roughly what Im gaining.
My mods are in my sig
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I know the BMW PE gains 3-5hp from a free flow muffler. Exhausts on these cars do not yield nearly enough benefit to justify cost. You could chop in a muffler, some users have posted which magnaflows work. It wouldn't be very hard to do.
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