4"/5" Downpipe-Back Exhaust for 2020-2024 Ford F250 F350 F450 6.7 Powerstroke

2020-2024 6.7 Powerstroke Downpipe-Back Exhaust Overview

Free up the exhaust path on your 2020-2024 Ford 6.7L Powerstroke 4 inch or 5 inch downpipe-back exhaust for F-250, F-350, and F-450 Super Duty Pickup models. This 409 stainless steel, straight-through race exhaust connects after the factory downpipe and is available in Silver or Black.

The factory emissions assembly on 2020+ models is a massive, heat-soaking bottleneck that forces your truck into constant, fuel-hungry DPF regeneration cycles. By completely removing the restrictive DPF (Diesel Particulate Filter) and SCR/DEF hardware, it slashes exhaust backpressure to zero and protects your engine under heavy hauling conditions.

Specification

Key Features

• High-Velocity 4 inch to 5 inch Flow Expansion: Transitions seamlessly from a 4-inch flange to a massive 5-inch straight body, entirely eliminating the heavy, clogged factory exhaust “cork” for maximum velocity.
• Eliminate Emissions-Related Limp Mode: Permanently bypass fragile DEF heaters, bad NOx sensors, and clogged filters that constantly threaten to leave your truck stranded in “Reduced Engine Power” mode.
• Drastically Drops EGTs (Exhaust Gas Temps): Vital for the high-output 6.7L platform; dumping hot exhaust gases out faster prevents heat saturation, keeping your oil, coolant, and VGT turbo running noticeably cooler.
• Quicker Turbo Spool-Up: Removing high backpressure allows your turbocharger to spool up instantly, wiping out low-end lag and giving you immediate, usable towing torque.
• Unparalleled 6.7L Powerstroke Sound: Unleashes that signature, deep, and throaty Ford V8 diesel growl along with a crisp turbine hiss under load—designed to remain comfortable inside the cabin during highway cruising.
• Boosted Fuel Efficiency (MPG): Eliminating active DPF regeneration cycles saves gallons of raw diesel fuel over time and prevents dangerous fuel dilution inside your engine crankcase.
• Mandrel-Bent Structural Integrity: Smooth curves mean zero neck-down or restriction points, preserving high exhaust velocity throughout the system.

Package Include

• 1 × selected 4 inch or 5 inch downpipe-back exhaust system
• Mid-pipe and rear exhaust sections from after the factory downpipe to the tailpipe
• OEM-style exhaust hangers

Not Included: Factory downpipe or muffler.

Installation

The exhaust system uses OEM-style hangers and factory mounting points for a direct bolt-on installation. No cutting or welding is required.

Why Choose SPETUNER?

• Perfect Fitment Guarantee: Custom-bent specifically to navigate the tight clearances of the 2020-2024 Ford Super Duty frame.
• Heavy-Duty Construction: 409 stainless steel and mandrel-bent tubing support demanding heat and operating conditions.
• Fast Domestic Shipping: Dispatched rapidly from our US warehouses, complete with live tracking direct to your garage.

Need matched EGR hardware and tuning? Compare the 2020-2024 Ford 6.7L Powerstroke DPF/DEF/EGR all-in-one kit.

Important Notes

• Off-Road Use Only: Intended exclusively for off-road, race, or competition vehicles.
• Check Local Laws: Not legal for use on public roads and may violate local, state, or federal emissions requirements, including the Clean Air Act.
• Professional Installation Recommended: Confirm year, model, engine, Pickup configuration, pipe size, finish, hangers, and clearance before installation.
• Tuning Required: DPF, CAT, SCR, or DOC deletion requires a capable tuner to disable affected emissions monitoring functions and support proper operation without related fault codes.

2020-2024 Ford 6.7L Powerstroke Fitment

Pickup models only. Does not fit Cab & Chassis models.

Browse more 2020+ Ford 6.7L Powerstroke parts.

Q: Will this 6.7 Powerstroke exhaust fit my truck?

A: It fits 2020-2024 Ford F-250, F-350, and F-450 Super Duty Pickup models with the 6.7L Powerstroke diesel engine. It does not fit Cab & Chassis models.

Q: Is this a DPF-back or downpipe-back exhaust?

A: This is a downpipe-back emissions-delete exhaust, not a conventional DPF-back system that retains the factory filters. It replaces the exhaust from after the factory downpipe to the tailpipe and removes the DPF and SCR/DEF exhaust hardware. The factory downpipe is not included.

Q: Does it include a muffler, and how loud is it?

A: No. This is a straight-through, muffler-delete design. It is significantly louder than the factory exhaust, especially under acceleration, and produces a deep diesel tone with increased turbo sound. Sound levels may vary depending on other modifications.

Q: Is installation bolt-on?

A: Yes. It uses OEM-style hangers and factory mounting points. No cutting or welding is required.

Q: Will it improve performance or trigger a check engine light?

A: The larger 4 inch or 5 inch piping helps reduce exhaust backpressure, which can improve turbo response and support increased torque and power potential, especially on modified trucks. A downpipe-back exhaust does not typically trigger a CEL on its own, as it does not modify sensors or emissions components upstream. However, results may vary depending on other vehicle modifications.

Q: Is tuning required, and is the 6.7 PowerStroke DPF back exhaust street legal?

A: DPF, CAT, SCR, or DOC deletion requires a capable tuner to disable emissions sensors and support proper engine operation without related fault codes. This system is for off-road and competition use only and is not legal for public-road use.