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Simple Installation: All systems use factory mounting locations providing stability and hassle-free installation. Leak-Free Seal: High quality band clamps are included for a complete 360 degree sealing surface. OE Fit: OE-style bayonet hangers are used to maintain a stable pipe location during high vibration...

Interested in a new exhaust system for your LML Duramax? Check out the Large Bore-HD DPF-Back exhaust system by aFe. This system is constructed from 5" mandrel-bent 409 stainless steel tubing and uses high quality band clamps and OE-style bayonet hangers. This unit uses...

Simple Installation: All systems use factory mounting locations providing stability and hassle-free installation. Leak-Free Seal: High quality band clamps are included for a complete 360 degree sealing surface. OE Fit: OE-style bayonet hangers are used to maintain a stable pipe location during high vibration...

Interested in a new exhaust system for your LML Duramax? Check out the Large Bore-HD DPF-Back exhaust system by aFe. This system is constructed from 5" mandrel-bent 409 stainless steel tubing and uses high quality band clamps and OE-style bayonet hangers. This unit uses...

Interested in a new exhaust system for your LML 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...

Interested in a new exhaust system for your LML 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...

The Large Bore HD Performance DPF-Back exhaust features 4" 409 stainless steel tubing with smooth curves and increased size to help remove restriction and keeps exhaust gasses flowing smoothly. The OE style band-clamps and bayonnet style hangers make sure this system installs cleanly and...

The Large Bore HD Performance DPF-Back exhaust features 4" 409 stainless steel tubing with smooth curves and increased size to help remove restriction and keeps exhaust gasses flowing smoothly. The OE style band-clamps and bayonnet style hangers make sure this system installs cleanly and...

The Large Bore HD Performance DPF-Back exhaust features 4" 409 stainless steel tubing with smooth curves and increased size to help remove restriction and keeps exhaust gasses flowing smoothly. The OE style band-clamps and bayonnet style hangers make sure this system installs cleanly and...

The Large Bore HD Performance DPF-Back exhaust features 4" 409 stainless steel tubing with smooth curves and increased size to help remove restriction and keeps exhaust gasses flowing smoothly. The OE style band-clamps and bayonnet style hangers make sure this system installs cleanly and...

Engineered to perform in the most extreme environments. Constructed from mandrel bent 4 in. 409 stainless steel tubing for maximum flow; increased horsepower; increased torque and lower EGTS. All systems use factory mounting locations providing stability and hassle free installation. High quality OE style...

Engineered to perform in the most extreme environments. Constructed from mandrel bent 4 in. 409 stainless steel tubing for maximum flow; increased horsepower; increased torque and lower EGTS. All systems use factory mounting locations providing stability and hassle free installation. High quality OE style...

Engineered to perform in the most extreme environments. Constructed from mandrel bent 4 in. 409 stainless steel tubing for maximum flow; increased horsepower; increased torque and lower EGTS. All systems use factory mounting locations providing stability and hassle free installation. High quality OE style...

This DPF-back exhaust system is constructed of 3 IN mandrel-bent 409 stainless steel tubing for maximum strength and durability. Finishing off this exhaust system is a 4-1/2" diameter black 304 stainless steel clamp-on exhaust tip. The tip features a laser etched aFe POWER logo...

This DPF-back exhaust system is constructed of 4" mandrel-bent 409 stainless steel tubing for maximum strength and durability. Finishing off this exhaust system are dual 5" diameter polished 304 stainless steel intercooled clamp-on exhaust tips. The tips features an aFe POWER logo plate riveted...

This DPF-back exhaust system is constructed of 3" mandrel-bent 409 stainless steel tubing for maximum strength and durability. Finishing off this exhaust system is a 4-1/2" diameter polished 304 stainless steel clamp-on exhaust tip. The tip features a laser etched aFe POWER logo for...

This DPF-back exhaust system is constructed of 4" mandrel-bent 409 stainless steel tubing for maximum strength and durability. Finishing off this exhaust system are dual 5" diameter black 304 stainless steel intercooled clamp-on exhaust tips. The tips features an aFe POWER logo plate riveted...

This DPF-back exhaust system is constructed of 5" mandrel-bent 409 stainless steel tubing for maximum strength and durability. Finishing off this exhaust system is a 6" diameter black 304 stainless steel intercooled clamp-on exhaust tip. The tip features an aFe POWER logo plate riveted...

This DPF-back exhaust system is constructed of 5" mandrel-bent 409 stainless steel tubing for maximum strength and durability. Finishing off this exhaust system is a 6" diameter polished 304 stainless steel intercooled clamp-on exhaust tip. The tip features an aFe POWER logo plate riveted...

aFe LARGE BORE HD exhaust systems are constructed from mandrel-bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower and torque, while decreasing EGT. The 2-piece design and bayonet style hangers provide stability and for an easy installation....

aFe LARGE BORE HD exhaust systems are constructed from mandrel-bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower and torque, while decreasing EGT. The 2-piece design and bayonet style hangers provide stability and for an easy installation....

aFe LARGE BORE HD exhaust systems are constructed from mandrel-bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower and torque, while decreasing EGT. The 2-piece design and bayonet style hangers provide stability and for an easy installation....

aFe LARGE BORE HD exhaust systems are constructed from mandrel-bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower and torque, while decreasing EGT. The 2-piece design and bayonet style hangers provide stability and for an easy installation....

aFe POWER Large Bore-HD DPF-Back exhaust creates maximum performance and flow. This free-flowing exhaust system resulted in a max gain of +7 horse power +15 lbs of torque. The exhaust system is constructed out of durable, 2-1/2 IN mandrel bent 409 stainless steel tubing...

aFe POWER Large Bore-HD DPF-back creates maximum performance. This exhaust system is constructed out of durable, 2-1/2 IN mandrel-bent 409 stainless steel tubing that incorporates a mitered merge collector. The mitered merge collector design is used to reduce turbulence for better flow and performance...

5" 409 Stainless Steel Construction: This DPF-back exhaust system is constructed of 5" mandrel-bent 409 stainless steel tubing for maximum strength and durability.7" Diameter Polished Exhaust Tip: Finishing off this exhaust system is a 7" diameter polished stainless steel clamp-on exhaust tip. The tip...

This DPF-back exhaust system is constructed of 3" mandrel-bent 409 stainless steel tubing for maximum strength and durability. Finishing off this exhaust system are dual 5" diameter polished 304 stainless steel clamp-on exhaust tips. The tips features an aFe POWER logo plate riveted on...

Interested in a new exhaust system? Check out the ATLAS DPF-Back exhaust system by aFe. This system is constructed from 5 in. mandrel-bent aluminized steel tubing. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGTs. Uses high quality band clamps...

This dpf-back exhaust system is constructed of 3 IN mandrel-bent 304 stainless steel tubing for maximum strength and durability. Quad 4" polished 304 stainless steel exhaust tips replace the factory tips for an aggressive, custom sport truck look. This system produces a mild sound...

This dpf-back exhaust system is constructed of 3 IN mandrel-bent 304 stainless steel tubing for maximum strength and durability. Quad 4" black 304 stainless steel exhaust tips replace the factory tips for an aggressive, custom sport truck look. This system produces a mild sound...