Magnapack Muffler Size???????????

dxwags

New Member
May 17, 2004
14
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Wisconsin
I just got my Prochamber today now I just need to order some mufflers. I was looking on Magnaflow site at Magnapacks but there is so many different sizes I dont know which to get. Can someone please help me out?? I have a 2001 GT.
 
I'm thinking just the mufflers. Is there much of a difference with sound because being in high school and buying everything on my own its defenitely cheaper with just the mufflers than the whole cat-back???