Quote:
Originally Posted by claykin
Aftermarket exhaust may provide minimal power increase. It's real benefit is sound and in some cases the look.
If the exhaust install is done correctly and the system used is proper for the car, you should be OK with warranty. No one can tell you 100%, however if BMW tried to deny a warranty claim they'd have to have good reason to do so and be able to provide evidence. The Magnuson Moss warranty act is on your side and makes it a little more difficult for bmw to simply deny warranty with no basis.
BTW, you realize that BMW makes a performance exhaust for your M550?
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I do, but not interested. From my research, Armytrix's exhaust sounds the best