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2003 GMC Sierra 1500
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2003 GMC Sierra 1500 Exhaust Systems | MagnaFlow
Shop MagnaFlow Performance Exhaust Systems for the 2003 GMC Sierra 1500, including cat-back exhaust systems for select engines, trims, and configurations. Engineered to produce MagnaFlow's deep signature exhaust sound, these systems feature premium materials and easy direct-fit installation. 2003 GMC Sierra 1500 exhaust options include 3-inch main piping diameters; polished exhaust tip finishes; single passenger side rear, dual split rear, and dual same side before passenger rear tire exit styles. Use Shop by Vehicle to find the system for your Sierra 1500.