Large Bore-HD 4" 409 Stainless Steel DPF-Back Exhaust System

The Large Bore-HD DPF-Back exhaust is engineered to perform in the most extreme environments. This system is constructed from 4" mandrel bent 409 stainless steel tubing for 22% more flow, increased horsepower, and increased torque. This system is finished off with a 4" stainless steel polished tip. Large Bore-HD exhaust systems are the perfect combination of performance, fit and value.

Installation is a Snap:
This systems uses factory mounting locations providing stability and hassle-free installation.

Leak-Free Seal:
High quality OE style band clamps are used for a complete 360 degree sealing surface.

Aggressive Sound:
A muffler delete-pipe is used for a true race-inspired sound and maximum flow.

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:
Large Bore-HD exhaust systems are constructed of 4" mandrel-bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, and torque.

4" Polished Tip:
Finishing off the exhaust is a 4" polished stainless steel slash cut tip. This tip also features a drain port on the bottom to keep rust and corrosion away.

Emissions Disclaimer:
This product does not require a CARB EO#.

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