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      11-02-2011, 10:10 AM   #18
pbonsalb
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Drives: 08 E90 M3, 99 E36 M3 Turbo
Join Date: Feb 2011
Location: Concord, NH

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Quote:
Originally Posted by Rekrul View Post
Yeah I mean I talked to one of their guys a little bit ago. It is in fact designed for our cars, so it should fit perfect. My only concern now, is will this void my CPO/factory warranty? As it will throw a check engine light.. which I really don't care about. Any other issues I'd be concerned about?
Yes, any exhaust except BMW's exhaust risks voiding the warranty. You are screwing with the AF mixture, making the car run rich at times, engaging in an illegal act, causing the engine to make more power than BMW warranted it for the average irresponsible owner to have, and so forth. Some dealers will make a note in your history log and others won't care. If you do have a claim, you can fight a denial if you can prove your mod had nothing to do with the failure. I would take it off if going in to the dealer. I would also run it with a tune so it runs right, and I would reflash the car to stock before going to the dealer.
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