Exhaust Pipes for Dodge Ram 2500 3500 (2019-2022) 6.7L Cummins Engine

High-Flow 4.0" Exhaust Pipes for 2019-2022 Ram 2500, 3500 (6.7L Cummins DJ/D2)

What it Does: This 4.0-inch mandrel-bent exhaust system replaces restrictive factory plumbing to maximize exhaust gas velocity and reduce thermal stress on the turbocharger and internal engine components.

The Stock Ram 2500/3500 Exhaust Bottleneck

The factory exhaust system on the 2019-2022 DJ/D2 chassis is engineered primarily for sound suppression and emissions packaging, which often results in significant backpressure. For the 6.7L Cummins, this restriction traps heat near the exhaust manifold and turbocharger turbine wheel, leading to elevated Exhaust Gas Temperatures (EGTs) during sustained towing or heavy-load cycles. Over time, the OEM piping—which lacks the wall thickness of high-grade aftermarket alternatives—can suffer from resonant vibration and localized heat soak, ultimately limiting the engine's volumetric efficiency and throttle response.

The Engineering Solution

This kit is constructed from heavy-duty 409 stainless steel with a 2mm wall thickness, providing a superior balance of corrosion resistance and structural integrity against diesel heat cycles. The system features 4.0-inch diameter piping that is TIG welded for maximum seam strength and utilizes CNC machined flanges for a precision fit against the turbo pipe. By eliminating unnecessary bungs and utilizing mandrel bends, the kit provides a smooth, unobstructed path for exhaust gases. The 4.0" inlet diameter ensures a high-flow transition, while the clamp-on mounting style allows for a secure, leak-free installation on the driveway using basic hand tools. This configuration specifically addresses the round flange connection found on the turbo pipe of the updated Cummins I6 platform.

Technical Specifications

Compatibility

• Years: 2019-2021 Ram 2500/3500 (Fits 2022 applications with matching flange)
• Configurations: Crew Cab Short Bed, Crew Cab Long Bed, Mega Cab
• Incompatibility: Not compatible with 3500/4500/5500 Cab & Chassis models
• Incompatibility: Not compatible with vehicles equipped with factory air suspension systems
• Requirement: Fit Round flange off turbo pipe ONLY

The Ram Heavy Duty Standard

The Ram 2500 and 3500 are built for extreme durability and heavy-duty towing; this exhaust upgrade supports those tasks by optimizing thermal management and reducing the parasitic loss caused by exhaust backpressure, ensuring the Cummins powerplant remains efficient under the heaviest loads.