10-06-2012, 11:12 PM
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Officially Welcomed to the 'Fest
Location: San Francisco
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Join Date: Aug 2009
Posts: 6,687
Mein Auto: 2009 E93 N54
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Quote:
Originally Posted by justinnum1
Golf tee mod does nothing but increase sound from the exhaust, and some people say it makes a difference, others say it doesnt. I dont think it does anything for the n20
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Reducing exhaust area 50% has an effect vs flap open. Perceived add'l torque off idle may be no more than faster turbo spin-up due to reduced back pressure.
Anyone got a readout on that?
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