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This aFe Large Bore-HD 4" 409 stainless DPF-back exhaust system for 2020–2025 GM 6.6L V8 diesel trucks is a direct-fit, factory-style installation for specified wheelbases. Constructed from 4" mandrel-bent 409 stainless tubing with dual 5" polished 304 stainless intercooled clamp-on tips, it uses a mitered merge collector, factory hangers and 100% MIG welds; some cutting may be required.
aFe Large Bore-HD 4in 409SS DPF-Back Exhaust System w/Polished Tips 20 GM Diesel Trucks V8-6.6L
