Thread: Dyno Day - 330i + AA Tune = Happyness
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      12-28-2011, 04:45 PM   #55
OPTIMAXED1
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Drives: E90 M3 ZCP, E91 328i
Join Date: Dec 2011
Location: Jax, Fl

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Has anyone here installed the BMW performance exhaust ? Did you notice a reduction in low down torque (say in 1500-2000 rpm range ) ?
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