Quote:
Originally Posted by W Cole
Are you sure? My fear is ill take the car in for a routine oil change with the aftermarket test pipes, etc installed and BMW will make note of it and then in the future if the engine has a catastrophic failure, even if I replace the xpipe to stock, they will have record of exhaust mods and therefore void the engine warranty.
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Federal law.
Worst case you lose your exhaust warranty, but if you don't have stock exhaust who cares.
http://en.wikipedia.org/wiki/Magnuso...s_Warranty_Act