Interested in a new exhaust system for your L5P Duramax? Check out the Large Bore-HD dual DPF-Back exhaust system by aFe. This system is constructed from 4" mandrel-bent 409 stainless steel tubing and uses high quality band clamps and OE-style bayonet hangers. This unit uses all factory mounting locations and comes with a bolt-on bracket that supports the driver side tailpipe. This provides for a quick, hassle-free installation with no modification necessary. Also included in this exhaust system are dual massive 5" high temp black powder-coated stainless steel tips with a laser-cut stainless steel aFe power badges. Large Bore-HD exhaust systems are the perfect combination of performance, fit and value.

Single To Dual Exhaust Conversion:

This exhaust is designed to convert the standard single exhaust into an aggressive dual exhaust.

Fits With Spare Tire:

This exhaust system fits perfectly without relocating the spare tire.

OE Fit:

OE-style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE-style fit that does not change with time.

Flow and Performance:

This Large Bore-HD exhaust system is constructed from 4" mandrel-bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGTs.

5" Black Tips:

Finishing off the exhaust are dual powder-coated high temp black 304 stainless steel exhaust tips. This tip features a laser-cut stainless steel aFe POWER badge for an aggressive style.

Wheelbases:

Crew Cab/Short Bed, 6.6ft Bed, 153.7" Wheelbase

Crew Cab/Long Bed, 8ft Bed, 167.7" Wheelbase

Note:Cutting is required for some cab configurations. Does NOT fit Cab & Chassis or 5th wheel package models.

Emissions Disclaimer:

This product does not require a CARB EO#

All aFe exhaust systems are engineered and manufactured in our Corona, California facility.