09-24-2012, 11:21 PM
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#2 (permalink)
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Super Mod
Join Date: Nov 2010
Location: Texas
Age: 62
Posts: 1,586
Rep Power: 12
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Not a sub, it's a noise cancellation system and that's probably what you have.
You have to have the upgraded sound system to get the sub.
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2011 Terrain SLT2 Carbon Black I4 FWD 
92 B4C Camaro - X Texas HWY Patrol car
ZZ4, SuperRam, Holley 52 mm TB, T-56.
92 Z/28
60\'1.937-1/4 13.851-98.16 mph

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