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Single - 4" Cat-Back System - Ultra Flo™ Welded Muffler
- 2010-07 Chevrolet / GMC Silverado/Sierra 2500HD 6.0L - 2007 New Body Style
- 2010-07 Chevrolet / GMC Silverado/Sierra 3500/3500HD 6.0L
- 2007 Chevrolet / GMC Silverado/Sierra 3500/3500HD 8.1L
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