DPF Delete Pipes

Diesel DPF & CAT Delete Pipes

DPF delete pipes replace the restricted factory filter section on off-road diesel builds and give the exhaust a direct route after the DPF is removed. These pipes are used when stock filters or related aftertreatment systems are removed for race, farm, or closed-course use.

Diesel Bro buyers usually choose pipes as part of a full delete setup. Once the DPF or CAT section is removed, the pipe should be paired with the right ECU software for the changed hardware. Inside the catalog of our diesel auto shop, truck owners can find all the necessary components for the delete setup.

Benefits and Technical Specifications

A freer exhaust path can help the turbo breathe with less back pressure. It can also improve performance when the pipe, tune, and truck condition line up.

• Flow – smoother exit path after the DPF section is removed.
• Turbo response – reduced exhaust restriction may help the turbo reach target boost more efficiently.
• Horsepower – performance gains are possible up to 5-15% when combined with proper tuning and supporting modifications. 
• Efficiency – possible 5-10% fuel change on steady routes.
• Reliability – removes a restriction point that can become problematic as factory aftertreatment components age. 
• Sound – a deeper tone with a full exhaust setup.

Some pipes use stainless or aluminized steel. Certain builds also involve catalytic converters, depending on the model year and factory layout. The catalyst section is replaced only where the listing supports it.

Wide Selection of DPF Delete Pipe Components

Diesel Bro carries straight replacement sections, CAT & DPF combinations, and race pipe designs. A diesel delete pipe can be one piece or a multi-section kit. Some listings include clamps, hangers, or adapters. Others reuse factory hardware. Key features of delete pipes to watch:

• Material. Stainless steel handles corrosion better. Aluminized steel is a lower-cost option for many exhaust parts.
• Diameter. Pipe diameter varies by application and may range from 3-inch to 4-inch, while some Duramax downpipe configurations use a 3.5-inch design. 
• Design. Some pipes remove the DPF only. Others handle CAT and DPF deletes in the same section.
• Fitment. Bends, hanger points, and flanges must match the chassis. Small year changes can change the layout.
• Surface. Smooth internal surfaces help maintain consistent exhaust flow and simplify installation.

The difference between listings is usually coverage, not just size. Fitment notes on each product page explain whether the pipe replaces only the DPF section or both the CAT and DPF assemblies. 

Vehicle Fitment

A Ford Powerstroke pipe may look close to a Ram Cummins part in photos, but the bends and hanger points can be different. Chevy Duramax listings have their own route, too. Diesel Bro lists pipes for these vehicles:

• Ford Powerstroke – 3.0L (2018–2020), 6.4L (2008–2010), and 6.7L (2011–2025).
• Ram Cummins – 6.7L (2007.5–2024), including selected Pickup and Cab & Chassis applications.
• Ram EcoDiesel – 3.0L (2014–2024).
• Jeep EcoDiesel – 3.0L Grand Cherokee (2014–2018), Wrangler (2020–2023), and Gladiator (2020–2023).
• GM Duramax – 6.6L LML (2011–2016) and 6.6L L5P (2017–2025).
• Nissan Titan XD Cummins – 5.0L (2016–2018).
• Mercedes Sprinter – 3.0L (2010–2018).

If the job only covers the catalyst section, use a CAT delete pipe only when the listing confirms that route for your truck.

How to Choose the DPF Delete Pipe

• Check the truck year and engine first.
• Match the wheelbase and body style to the listing.
• Choose the pipe section shown for that exact application.
• See what the kit in question includes.

Diesel Bro support can help if the fitment notes or exhaust route are unclear. Contact the diesel auto shop over the phone (877 899-7875) or by email (info@dieselbro.com) for guidance.