Did loudmouth II on my v-6 Camaro and it has a SIGNIFICANT increase in rumble at startup and acceration. Drops down a few notches at idle.
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2010 Camaro 2LT/RS/ Black on Grey
1100 = Preliminary Order: 03/18/2009
3800 = Produced, 7/22 VIN #2G1FC1EV4A9127541
4200 = Shipped 07/27/2009
5000 = Delivered to Dealer 08/07/2009
6000 = Delivered To Customer 08/08/2009
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