4"/5" Downpipe-Back for 2019-2025 6.7 Cummins w/DPF Delete/Race Pipe | SPELAB

Description

Upgrade your 2019+ Dodge Ram 2500/3500 6.7L Cummins with SPELAB’s premium DPF Delete Race Pipe or Full Downpipe-Back Exhaust System. Designed for performance and longevity, this race-use-only exhaust upgrade eliminates restrictive emissions components like the Diesel Particulate Filter (DPF) and catalytic converter, allowing for improved exhaust flow, better fuel mileage, and enhanced engine response. Made from durable SUS409 stainless steel with a 2mm thickness, each pipe is engineered for a direct fit with basic tools and includes all required hardware.
BONUS OFFER: Get a FREE exhaust tip with every DPF pipe purchase (SKU: SPES08341).

Key Features

• Multiple Configuration Options: Choose from 4" or 5" Race Pipes or Full Downpipe-Back Systems (with or without muffler).
• Durable SUS409 Stainless Steel: 2mm thick for long-lasting durability and heat resistance.
• Increased Fuel Efficiency: Remove restrictive filters to gain up to 4–6 mpg depending on your setup and driving habits.
• Boosted Performance: Reduce backpressure, increase exhaust flow, and unlock horsepower and torque potential.
• Simple Installation: Approx. 1-hour install with hand tools; all clamps, bolts, and hangers included.
• Specifications

Fitment

• 2019–2025 Dodge Ram 2500/3500 (6.7 Cummins): Crew cab short/long bed & mega cab (excludes cab & chassis models).

Package Includes

2x Pipes
2x Clamps
1x Hanger
3x Bolts
(You will get exactly as shown in the picture above)

Installation

DPF Delete Pipe Installation Instruction

Install takes about 1hr with basic hand tools done on the ground of your driveway or garage. Quicker if you have automotive style lift. Cutting may be be required to fit shorter wheelbase bed/cab configurations. Clamps, hangers and hardware are included. You may have to re-use some factory hardware.
Tuner Required: Removal of the DPF, CAT, SCR, and/or DOC involves removing and eliminating emission related sensors. A DPF delete capable tuner is required to prevent any check engine light or diagnostic trouble codes from setting.

Note: For 5'' DP-back, regular Cab trucks WILL require modifications for installation. 

What is the DPF and is it worth doing a DPF Delete?

Most post-2007 diesel vehicles are fitted with a Diesel Particulate Filter (DPF) for emissions reasons, however there are a few disadvantages to this device; including constant maintenance and repairs.

Because the DPF clogs up, it increases backpressure. Due to this pressure, the fuel flow is hugely disturbed and slowed down. Therefore, when you remove this filter, the fuel flows much easily and faster, increasing the overall fuel mileage.

Benefits

Expect to see a significant increase in fuel mileage. If your DPF is plugged up your probably averaging about 13-14 mpg. More or less depending on the severity of the restriction. After deleting the DPF/CAT expect to get a combined mileage of 18-19 mpg.

• It removes the need to service the DPF at regular intervals (cleaning, replacement)
• A DPF delete will remove the possibility of a DPF failure which could cause expensive diesel repairs
• Due to less exhaust backpressure, the DPF delete increases exhaust flow and therefore increases the performance of your motor!
• Paired with an ECU remap, the DPF delete is proven to increase power and torque for all vehicles

Q: What vehicles does this DPF delete kit fit?
A: It fits 2019–2023 Dodge Ram 2500/3500 trucks with the 6.7L Cummins engine. Compatible with crew cab short bed, crew cab long bed, and mega cab. Not compatible with cab & chassis (3500/4500/5500 commercial trucks).

Q: What’s included in the package?
A: The kit includes 2 pipes, 2 clamps, 1 hanger, and 3 bolts — everything shown in the product image.

Q: Do I need to tune my truck after installing this?
A: Yes. A DPF delete tuner is required. Removing emissions-related components like the DPF, CAT, SCR, or DOC will trigger check engine lights unless tuned appropriately.

Q: What are the benefits of a DPF delete?
A: Key benefits include improved fuel mileage (up to 18–19 mpg), reduced backpressure, better throttle response, and eliminating the risk of DPF-related failures.

Q: How long does installation take?
A: Installation takes about 1 hour with hand tools. Shorter with a lift. Some trimming may be needed for specific cab/bed lengths.

Q: Will this pass emissions testing?
A: No. This product is intended for off-road and race use only and will not pass emissions inspections in regions where testing is required.