Borla 3.5" Exhaust Extension Pipe For 20 25 Chevy Silverado GMC Sierra 2500 3500 2003 2007 6.0l powerstroke and throttle response HSK66 12637785 12637788 and throttle response No need to pull over and download a different setting while the competition passes you by Outlet Diameter: 2020 2025 GMC Sierra 2500 6
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