aFe Large Bore-HD 4in 409SS DPF-Back Exhaust, Black Tips - 2020-2026 GM 6.6L L5P Duramax 2500/3500 HD

aFe Large Bore-HD DPF-back exhaust system for the 2020-2026 GM 6.6L L5P Duramax, converting the factory single outlet into an aggressive dual setup. Built from 4" mandrel-bent 409 stainless steel tubing and finished with dual 5" black 304 stainless steel intercooled clamp-on tips carrying a riveted aFe POWER logo plate. A mitered merge collector reduces turbulence and increases exhaust velocity for added horsepower, torque and throttle response. The system is 100% MIG-welded and mounts to factory hanger locations using the included hardware; some cutting may be required per the instruction sheet. This is a Non-CARB (49-state) part, not legal for sale or use in California.

Specifications

This part fits: