MBRP S6100409 4 inch Turbo Back Exhaust System | 1998-2002 Dodge RAM 2500/3500 5.9L Cummins

Features:

• Fits 1998–2002 Dodge RAM 2500/3500 5.9L Cummins
• Turbo-back design replaces full factory exhaust
• 4" mandrel-bent tubing improves exhaust flow
• T409 stainless steel resists rust and corrosion
• Increases horsepower and low-end torque
• Reduces exhaust gas temperatures under load
• Enhances turbo spool and throttle response
• Produces deep and aggressive MBRP exhaust tone
• Boosts fuel efficiency with less backpressure
• Designed for off-road use in non-emissions trucks
• Bolt-on install with factory-style hangers
• Includes all clamps and installation hardware

Let Your Cummins Breathe Like It Was Built To

If you’re still running a stock exhaust on your 1998–2002 Dodge RAM 2500 or 3500 with the 5.9L Cummins, the MBRP S6100409 Turbo Back Exhaust System is the performance upgrade your truck has been waiting for. This system replaces everything from the turbocharger back, giving your engine the chance to breathe freely and sound like a true workhorse. The difference is immediate, you’ll hear a deeper, more aggressive tone and feel stronger acceleration whether you're cruising or pulling a load. Built from T409 stainless steel, this system is designed to take on harsh road conditions, salt, and heavy-duty use without giving up. It’s a great fit for the daily driver who wants a rugged exhaust that’s built to last and perform. With less restriction, you’ll also enjoy better throttle response and cooler engine temps, especially when working under pressure. If you’re ready to give your Cummins the sound and performance it deserves, this system delivers from the first start.

Engineered To Maximize Flow And Withstand Daily Demands

The MBRP S6100409 Turbo Back Exhaust System is built for serious diesel owners who expect their trucks to perform at peak efficiency day after day. It features 4-inch mandrel-bent tubing that allows exhaust gases to exit quickly and cleanly, reducing backpressure and helping to lower exhaust gas temperatures. These improvements support gains in horsepower and torque, especially when towing or under sustained throttle. Constructed from durable T409 stainless steel, this system offers long-term resistance to corrosion and is ideal for trucks used in demanding environments. As a full turbo-back system, it eliminates the stock restrictions that hold your Cummins back, enhancing turbo spool-up and responsiveness. The deep, bold tone is distinct without being overly aggressive, providing a clean sound that reflects the strength of your truck. Installation is straightforward with all clamps and hangers included, and no welding is typically required. This system is an excellent choice for Cummins owners looking to boost performance, efficiency, and sound with one dependable upgrade.

Fits: 1998, 1999, 2000, 2001, 2002 Dodge RAM 2500/3500 5.9L Cummins

Notes:

• Fits 1998–2002 Dodge RAM 2500 and 3500 models with 5.9L Cummins engine
• This is a turbo-back system and replaces the entire factory exhaust
• Not designed for vehicles equipped with catalytic converters or emissions controls
• Recommended for off-road use or vehicles registered in non-emissions-restricted areas
• Constructed from T409 stainless steel for corrosion resistance and long-term durability
• Delivers a deeper, more aggressive tone specific to Cummins diesel engines
• Mandrel-bent tubing improves exhaust flow and turbo response
• Helps reduce exhaust gas temperatures under heavy load
• Uses OEM-style hangers for a secure and straightforward bolt-on installation
• May require trimming depending on cab and bed configuration
• Includes all necessary clamps and installation hardware
• Backed by MBRP’s limited lifetime warranty on T409 stainless steel systems