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Old 01-25-2006, 07:36 PM   #13
6th Gear Member
Join Date: Oct 2003
Location: Milton
Posts: 4,513
M3's had issues with cats going bad (cat's are part of e46 M3 headers) and so if you have an M3 and yours go bad (out of warranty) its a good replacement source.

I have a set as well but I'm keeping them to do emissions.

JazzM is offline   Reply With Quote