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      09-29-2013, 09:08 PM   #12
HP Autosport
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Drives: F80 M3
Join Date: Mar 2007
Location: Santa Barbara, AP, Brembo, GIAC, Koni, Ohlins, Performance Friction, www.hpautosport.com

iTrader: (34)

Quote:
Originally Posted by blackey View Post
How do these compare to the 4150 series?
4150 never made it to the market so I can't compare.