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      11-16-2012, 04:00 AM   #2
1QuikWS6
No 55mph
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Drives: F32 435ix MSport ->M6
Join Date: Jul 2009
Location: Blitzburgh, PA

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2016 BMW 435ix  [0.00]
Be careful removing all the restrictions and opening up exhaust size (greatly reducing factory built-in backpressure) - on the NA cars it actually has a detrimental effect and you LOSE low end power.

Cars were designed to run in optimum condition with a certain amount of backpressure.

Do a Search on here and do some reading 1st...
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