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New exhaust
plaster dave
05-19-2007, 01:43 PM
I Just put a Magna Flow on my 04' 2500 GMC 4x4 Duramax and I cant believe the power from just the muffler. So much more low end power.
Inked
05-30-2007, 05:22 PM
pull the cat also, another jump in power as well as sound....
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