Quote:
Originally Posted by tmick5jr
so its basically catless dp's and a muffler delete
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No muffler delete is far louder, and doesn't allow you to switch between quiet and loud. Even when the valve is open the exhaust still goes out the normal muffler too and there is still a perforated pipe connecting the two mufflers that muffles some sound.
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2010 Blacked out 335i 6MT (N54) with BMS DCI, JB4 G5 (w/ 2-step, NLS) w/ MHD backend flash, Catless DPs, 5" Stepped FMIC, Spec Stage 2+ Clutch, ER Chargepipe w/ Tial BOV, and a lot of carbon fiber.