Exhaust Muffler Pipes for Dodge Ram (2013-2018) 6.7L Cummins Engine

Durable Exhaust Muffler Pipes for 2013-2018 Dodge Ram 2500 & 3500 (6.7L Cummins DJ/D2)

What it Does: These 4-inch 409 stainless steel pipes replace the restrictive or corroded factory muffler section to restore exhaust flow and structural integrity in heavy-duty Cummins applications.

The Stock Ram 2500/3500 Exhaust Weakness

The OEM exhaust components on 2013-2018 Ram heavy-duty trucks are frequently compromised by internal baffle degradation and external oxidation. The factory-grade mild steel is susceptible to thinning over time, especially when exposed to the high sulfur content of diesel particulates and road salts. This deterioration often leads to exhaust leaks at the flange connections and internal rattling that can disrupt backpressure balance. Furthermore, the stock muffler's restrictive internal geometry can contribute to increased Exhaust Gas Temperatures (EGTs) during sustained heavy towing, as heat is retained within the heavy-gauge baffled chambers rather than being efficiently evacuated through the tailpipe.

The Engineering Solution

This replacement muffler pipe kit is engineered from high-grade 409 stainless steel with a 2mm wall thickness, providing superior thermal fatigue resistance compared to standard aluminized steel. The 4-inch inlet diameter is designed to match the high-volume airflow requirements of the 6.7L Cummins ISB engine, ensuring no bottlenecking occurs post-DPF. Utilizing a direct bolt-on 2-bolt connection type, the kit facilitates a precise mechanical fit without the need for field modifications or welding. The inclusion of 409-grade steel allows the system to remain ductile under extreme vibration and heat cycling, which is critical for maintaining the structural integrity of the exhaust hangers and flange seals during high-torque output scenarios.

Technical Specifications

Compatibility

• For Dodge Ram 2500 6.7L Cummins 2013-2018
• For Dodge Ram 3500 6.7L Cummins 2013-2018

The Dodge Ram Heavy-Duty Standard

Built specifically for the DJ and D2 chassis, these exhaust components are manufactured to handle the extreme vertical loads and vibrations associated with commercial-grade towing. By utilizing 409 stainless steel, this kit ensures that your Cummins-powered Ram maintains the exhaust scavenging efficiency required for peak torque delivery and long-term durability on the job site.