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      01-06-2012, 07:47 PM   #7
pbonsalb
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Drives: 08 E90 M3, 99 E36 M3 Turbo
Join Date: Feb 2011
Location: Concord, NH

Posts: 1,512
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if you can find a shop that will remove the four stock cats and tig weld in four sections of stainless for $100, you should do it.

Performance wise, I agree there is likely little gain from an aftermarket x-pipe over a well-modified stock x-pipe.

I also agree that I do not want to irreversibly hack my stock midpipe. I bought an aftermarket one for that reason.
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