Unleash Your Cummins’ True Sound and Performance
Give your 6.7L Cummins the deep, aggressive tone it was built for with this 4″ 409SS Exhaust System. Engineered to improve exhaust flow and reduce backpressure, this system allows your Cummins to breathe freely—unlocking noticeable gains in horsepower, torque, and throttle response. Expect stronger pulls under load, lower EGTs, and that unmistakable Cummins diesel rumble every time you step on the throttle.
High-Flow 4-Inch Design
Featuring mandrel-bent 4″ piping, this exhaust delivers smooth, unrestricted flow from turbo to tailpipe. By eliminating factory bottlenecks, it maximizes efficiency and performance while dialing in the perfect balance of sound, power, and drivability for your Ram Cummins.
Durable, Long-Lasting Construction
Constructed from high-quality 409 stainless steel, this exhaust system is built to handle daily driving, heavy towing, and high-performance use. Precision welds and heavy-duty hangers ensure a secure fit and long-term durability in even the harshest conditions.
Tuning & DPF Removal Required
Designed for off-road and competition use only, this system requires DPF (Diesel Particulate Filter) removal. Custom tuning is required to optimize performance and prevent check-engine lights after installation.
Easy Installation
The bolt-together design allows for a straightforward install using basic hand tools. All necessary clamps and hardware are included, and no welding is typically required—resulting in a clean, factory-style fit with a noticeably more aggressive exhaust note.
Note
For off-road and competition use only. This product is not emissions-compliant in all states or regions.
