Home » 2019-2024 6.7L Ram Cummins 5" DPF Delete Downpipe Back

2019-2024 6.7L Ram Cummins 5" DPF Delete Downpipe Back

Compatibility: 2019-2024 Dodge Ram Cummins 6.7L (2500/3500)

Product: 5" Downpipe-Back DPF Delete Exhaust System

LEGAL DISCLAIMER & COMPLIANCE

OFF-ROAD USE ONLY: This high-performance racing component is engineered exclusively for competition or sanctioned off-road use. It does not comply with federal or local emissions laws for highway operation. Installation on any vehicle registered for public roads is strictly prohibited. The end-user assumes all legal liability and risk associated with the installation and use of this product.

PHASE 1: DISASSEMBLY & REMOVAL

Step 1: Sensor & Electrical Isolation Begin by removing the six (6) factory sensors from the exhaust system. Carefully disconnect all associated electrical harnesses and secure them safely away from the working area to prevent damage during removal.

Step 2: Tailpipe Detachment Starting from the rear of the vehicle, loosen the clamp securing the tailpipe assembly to the DPF outlet. Detach the hangers from the frame-mounted rubber isolators to free the tailpipe section.

Step 3: After-Treatment Unit Removal Use a wrench to remove the four (4) nuts securing the front and rear after-treatment units (cans).

  • Tech Tip: To simplify the removal of the front section, you may also remove the factory hanger bracket located on the crossbeam adjacent to the flange.

  • Caution: These components are extremely heavy; use a jack or an assistant to support the weight during disassembly.

Step 4: DPF Inlet Disconnection Loosen the nut on the V-band clamp at the junction between the factory downpipe and the DPF inlet. Remove the clamp and extract the entire DPF section from the chassis.

  • Important: Retain the factory V-band gasket; it must be reused for the new installation.

PHASE 2: COMPONENT INSTALLATION

Step 5: Front Pipe Installation Slide the #1 Front Pipe over the two chassis crossbeams. Connect it to the factory downpipe using the original V-band clamp and gasket. Ensure the integrated hanger is properly seated in the rubber isolator.

  • Note: Keep the clamp loosely secured at this stage to allow for alignment adjustments later.

Step 6: Rear Section Positioning Hang the #5 Over-Axle Pipe and the #6 Tailpipe combination. Ensure the hangers are fully engaged in the rubber isolators and that the pipes are seated firmly into one another.

Step 7: Mid-Pipe & Extension Integration

  1. Install the #4 Muffler Replacement Pipe onto the inlet of the over-axle pipe.

  2. Measure the distance between the #4 pipe and the outlet of Front Pipe #1. This measurement determines your required extension length.

  3. Select Extension Pipes #2 and #3 based on your vehicle's specific wheelbase requirements. If necessary, trim the extension pipes to achieve a precise fit for your truck.

PHASE 3: FINAL ALIGNMENT & TORQUE

Step 8: System Alignment & Securement With all components in position, perform a comprehensive check to ensure the entire system is properly aligned and has adequate clearance from the chassis and suspension.

  1. Adjust the pipe clamps as necessary to ensure a level and professional appearance.

  2. Tighten all hardware and clamps gradually, starting from the front downpipe and moving toward the rear of the truck.

POST-INSTALLATION ADVISORY

  • ECM Tuning: This hardware modification requires a compatible Electronic Calibration (Race Tune) to disable the factory emissions logic. Failure to update the software will result in "Limp Mode" and Diagnostic Trouble Codes (DTCs).

  • Maintenance: It is highly recommended to inspect and re-torque all clamps after the first 50–100 miles of driving to account for thermal expansion and material settling.