Thread: Best sounding 135i coupe
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      08-17-2011, 03:31 PM   #37
HP Autosport
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Drives: F80 M3
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Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com

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We ran Berk on our N55 135i and liked the sound a lot. We sell a few different exhausts that sound good though.

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