Thread: ISF Exhaust?
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      05-07-2012, 03:31 PM   #7
M3PO
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Drives: '08 IB E92
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The IS-F still has two fake tips. Two of the tips are fake on my Dinan exhaust, who cares.

My guess for the boomy-ness of the IS-F exhaust is that the 8-speed in that car tends to upshift to high gears at lower than ideal speeds which puts you on the borderline of lugging the car.
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