Thread: OBX Headers dynoed before and after....
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Old 10-30-2010, 01:50 PM   #48
RedJewel2SS
12.23s@113mph
 
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Drives: 2SS/RS, A6, just a few bolt ons
Join Date: Jul 2009
Location: Houston, TX
Posts: 1,197
31 rwhp on an A6 is typical... the M6 guys are seeing better gains
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