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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Does muffler delete increase hp/tq or is it a "sound only mod"?



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      07-25-2008, 07:33 PM   #23
TMack
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Quote:
Originally Posted by str8nm View Post
FWIW: The BMW performance intake produces an extra 3 HP @6000 rpm. The BMW performance exhaust produces an extra 5 HP @ 6000 rpm. This from the Plano, TX BMW dealership web site.
I'm sure they're nice but that's a lot of jack for a little bump.
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