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The aFe ATLAS 4" DPF-back aluminized steel exhaust system is a direct-fit dual-exit kit for 2017–2019 GM Duramax 6.6L L5P trucks that converts single to dual exhaust. Constructed from 4" mandrel-bent aluminized tubing with OE-style bayonet hangers and high-quality band clamps, it uses factory mounting locations and a bolt-on bracket for quick installation. Dual 6" matte-black tips finish the system while smooth bends aim to boost flow and lower EGTs.
aFe ATLAS 4in DPF-Back Alum Steel Exhaust System w/Dual Exit Black Tip 2017 GM Duramax 6.6L (td)
