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      07-29-2010, 12:19 PM   #41
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Drives: E92 335i M-Sport, 6MT, AW/CR
Join Date: Apr 2009
Location: NoVA

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The weight difference in Advan flow-formed cast wheels and their forged wheels are very minimal. The strength is similar, however I believe the manufacturing process is much cheaper in flow-forming due to the added cost of the high-pressure forging machines.

Forged wheels should have added strength characterists, but not sure the level of difference.

F1 and Indy cars use Flow-Form Cast BBS wheels.