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      02-19-2012, 05:22 AM   #43
RobMCoupe
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Drives: 2007 Z4 M Coupe
Join Date: Feb 2010
Location: Bay Area

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I am checking price availability on 4150 with Swift spring 400/500. People seem to like this combination for street and track. I currently have TCK DA/SA 500/600. It performed well on track. On street, it is a bit stiff. The car lose traction going over bumps at high speed.
Appreciate 0