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      10-26-2011, 09:51 PM   #17
pbonsalb
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Drives: 18 F90 M5, 99 E36 M3 Turbo
Join Date: Feb 2011
Location: New England

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Pulleys, tune and catless X pipe make the power. The rear exhaust is very, very little bang for the buck though it does sound nice and may drop some weight. An intake is probably worth about the same. Eurotuner dynotested the AFE intake and rear exhaust and gained no power.
Appreciate 0