Home » 2011-2022 6.7L Ford Powerstroke 5" Down-pipe Back DPF Delete Pipe

Compatibility: 2011–2022 Ford Super Duty F-250 / F-350 (6.7L Powerstroke)

Product: 5" Downpipe-Back DPF Delete Performance 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 & OEM REMOVAL

Step 1: Sensor Isolation & Exhaust Removal

  1. Sensor Disconnection: Carefully remove all EGT sensors, pressure lines, and auxiliary connections from the Diesel Particulate Filter (DPF). Secure the factory harnesses safely to the chassis frame to prevent damage.

  2. System Detachment: Starting at the factory downpipe flange, unscrew the primary connection. Loosen all downstream clamps from the rear of the DPF through to the tailpipe.

  3. Extraction: Lubricate and extract all metal hangers from the OEM rubber isolators.

    • Tech Tip: If you prefer not to cut the factory tailpipe for removal, use a frame lift to allow the rear axle to hang freely; this provides the necessary clearance to extract the tailpipe section in one piece.

PHASE 2: COMPONENT INSTALLATION

Step 2: Primary Pipe Placement Align the #1 Delete Pipe with the outlet of the factory downpipe. Install the flange and secure it loosely with the hardware to allow for later alignment adjustments.

Step 3: Intermediate Pipe Integration Install Pipe #2 by connecting the tapered (narrower) end to the outlet of Pipe #1.

  1. Insert the integrated metal hangers into the corresponding OEM rubber mounts and support the pipe with a stand.

  2. Wheelbase Adjustment: This 5" system is designed to accommodate various cab/bed configurations and may require precision trimming of the straight section to fit your specific truck’s wheelbase.

Step 4: Extension & Muffler Delete Assembly

  1. Custom Fitment: Measure the gap between the mid-pipe and the over-axle section. Trim and install the #3-2 Extension Pipe as required for a precise fit.

  2. Muffler Delete: Position the #3-1 Muffler Delete Pipe onto the over-axle inlet and support it temporarily with a bracket or stand.

Step 5: Over-Axle & Tailpipe Finalization Route the #4 Over-Axle Pipe over the rear axle assembly. Connect the outlet to the #5 Tailpipe and secure all hangers into the factory rubber supports.

PHASE 3: FINAL ALIGNMENT & TORQUE

Step 6: System Calibration & Securing With the entire 5" system mounted loosely, perform a comprehensive inspection to ensure optimal clearance from the chassis, suspension, brake lines, and spare tire.

  1. Adjust the pipe rotation and depth to achieve a level, professional appearance.

  2. Torque Sequence: Working from the front flange connection toward the rear, tighten all clamps and hardware evenly.

POST-INSTALLATION ADVISORY

  • ECM Tuning: This hardware modification strictly requires a compatible Electronic Calibration (Race Tune) to disable the factory emissions logic. Failure to update the software will cause the vehicle to enter "Limp Mode."

  • Thermal Check: Re-torque all hardware and check for exhaust leaks after the first 50–100 miles of driving to account for material settling and thermal expansion.