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The problem with the E46 is... (archive)

[ Follow Ups ] [ 3-series (E46) Message Board ] [ Msg. Board FAQ ]

Posted by Bruce on February 17, 1999 at 20:07:25:

In Reply to: Doubt it... posted by Preston on February 17, 1999 at 19:27:19:

the cats are connected to the exhaust manifold and not in the middle of the car (suppose to help heat the cat faster and decrease emissions)...there are supposedly 4 O2 sensors (2 up the exhuast strem for the cat and 2 downstream- who know s how far downstream) CAN NOT take those 2 downstream O2 sensors out and not affect the way the car runs

an exhaust for an E46 is possibile but i highly doubt it will be a traditional "cat back"...and it may not be a plug and play, they might have to cut and weld pieces


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