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      08-20-2009, 12:31 PM   #11
stressdoc
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Dominica
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Drives: F80 YMB
Join Date: Jun 2005
Location: MO

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The M3 suspension parts (control arms etc.) have different bushings. Rear sub-frame and final drive bushings are also critical. The rft-tuned suspension uses spongy bushings to isolate shock from stiff sidewalls. Strut and shock mounts are more difficult to find appropriate upgrades for.