Bimmerfest - BMW Forums - View Single Post - Intake horn and resonator delete.
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Old 10-30-2012, 01:40 AM
fullthrottle540's Avatar
fullthrottle540 fullthrottle540 is offline
Location: san diego
Join Date: May 2012
Posts: 165
Mein Auto: E39
i would guess louder and better throttle response. Wouldn't be surprised if it added a HP or two either.
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