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      12-14-2019, 01:44 AM   #5
wyatth
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Drives: E90 ZCP
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Quote:
Originally Posted by Automaters View Post
Am I right in believing that the factory x-pipe gets cut and these are added on, so it ends up being catless?

Thanks
These would only replace the primary cats in the factory x-pipe. You’d still have your downstream secondary cats.
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