01-14-2013, 06:58 PM
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Officially Welcomed to the 'Fest
Location: San Francisco
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Join Date: Aug 2009
Posts: 6,638
Mein Auto: 2009 E93 N54
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Quote:
Originally Posted by E90Dad
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Back pressure reduction reduces torque below, what, 3k rpm. Increases sound, true. Easiest exhaust mod by far. Leaves flap that routes all exhaust to the right pipe open so it flows through both pipes.
Just crimp the line at the driver side actuator with wire tie. Easier, and much easier to reverse.
Naturally, you do this at your own risk. I didn't like the effect and sound was iffy enough that I went back to stock.
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