FITMENT
- 2013–2019 6.7L Ram 3500 / 4500 / 5500 Cab & Chassis Cummins Turbo Diesel.
- NOTE: ONLY for commercial Cab & Chassis models with straight frame rails.
- NOT fit standard Pickup trucks (with standard factory cargo beds) or trucks with factory rear air suspension.
DESCRIPTION
Product Overview
-
Commercial 2013+ Ram Cab & Chassis trucks equipped with the 6.7L Cummins engine are heavily choked by dense OEM emissions assemblies. The heavy DPF and SCR (DEF) system trap extreme heat directly behind the turbo, trigger frequent regens that waste commercial fuel, and create costly DEF pump/heater failures that put work trucks into Limp Mode.
- The 4" Cab & Chassis DPF & SCR Delete Race Exhaust Kit is custom-contoured for straight-rail commercial chassis designs. this kit bypasses all restrictive emissions filters. By freeing exhaust flow right behind the downpipe, it sharply drops towing EGTs, improves throttle response, boosts fuel economy, and ensures your work truck stays running reliably without emissions-related downtime.
Key Features
- Premium T409 Stainless Steel: Mandrel-bent 4-inch T409 stainless steel tubing built to resist severe thermal stress, road salt, and job-site corrosion.
- Drastic Towing EGT Drop: Relieves extreme turbine backpressure to sharply lower EGTs under heavy commercial payloads and continuous towing.
- Stop Costly DEF/Regen Downtime: Permanently eliminates active regeneration cycles and DEF system limp-mode errors, reducing fuel consumption and job-site breakdown risks.
- DPF & SCR (DEF) Removal: Completely replaces the restrictive OEM DPF, catalytic converter, SCR (DEF system), and muffler to maximize exhaust velocity.
FAQ
Q: Why can't I use a standard Ram 2500/3500 Pickup exhaust pipe on a Cab & Chassis truck?
A: Standard pickup trucks have curved frame rails, bed-specific hanger locations, and short-wheelbase layouts. Commercial Cab & Chassis trucks feature straight, C-channel flat-frame rails, larger commercial fuel tanks, and longer wheelbases. This kit is custom-bent to fit straight-rail commercial frame geometry properly.
Q: Do I need a custom delete tuner to run this 4" Cab & Chassis race pipe?
A: Yes. Removing the factory DPF, SCR, and emissions sensors will trigger Check Engine Lights and put the truck into commercial Limp Mode. A compatible delete tuner is required to bypass emissions codes.
Q: Do you recommend pairing this exhaust with an EGR Delete Kit for commercial trucks?
A: Highly recommended. While this exhaust frees backpressure, an EGR Delete Kit stops hot, soot-heavy exhaust from re-entering your intake manifold—keeping intake valves clean and preventing turbo soot buildup on high-mileage work trucks.
Q: Is custom welding required during installation?
A: No welding is required. It is designed as a direct bolt-on system using heavy-duty stainless steel clamps and pre-welded hanger rods positioned to align with factory commercial rubber exhaust mounts.
