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Old 11-19-2009, 01:13 AM   #7
THUMPER20X
GM fix my PAINT U suck!
 
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Drives: 2010 Black 1SS/RS 6Spd
Join Date: Sep 2009
Location: Great Red North
Posts: 1,856
3-1/2 but 4" will work. The stock ones are 3"
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