6.7L Powerstroke Downpipe-Back Exhaust System | Ford Cab & Chassis | 2011–2019

Upgrade the exhaust on your 2011–2019 Ford F-350, F-450, or F-550 Cab & Chassis 6.7L Powerstroke with this complete 4" downpipe-back exhaust system. Built from stainless steel and designed around the commercial truck chassis, it replaces the exhaust behind the factory downpipe.

This system is specifically routed for compatible Cab & Chassis trucks. It is not designed for standard pickups or trucks equipped with a centre-mounted rear fuel tank.

Overview

Ford Super Duty Cab & Chassis trucks use a different exhaust layout than their pickup counterparts. Frame configuration, body equipment, and fuel-tank placement can all affect how an exhaust system fits.

This 4" downpipe-back exhaust is designed for the 2011–2019 Ford F-350, F-450, and F-550 Cab & Chassis platform equipped with the 6.7L Powerstroke diesel engine.

The system connects behind the original downpipe and replaces the exhaust sections downstream of that connection. Its stainless steel construction provides corrosion resistance for demanding truck applications.

Important: Confirm your truck's body configuration and rear fuel-tank location before ordering. This exhaust does not fit pickup models or trucks with a centre-mounted rear fuel tank.

Vehicle Fitment

Important Fitment Notes:

• Fits 2011–2019 Ford F-350, F-450, and F-550 Cab & Chassis trucks equipped with the 6.7L Powerstroke diesel engine.
• Cab & Chassis configurations only. Does not fit standard pickup models.
• Does not fit trucks with a centre-mounted rear fuel tank.
• Designed to connect behind the original factory downpipe.
• Not a complete turbo-back system; the original downpipe is retained.
• Aftermarket service bodies, relocated equipment, or modified exhaust routing may affect installation clearance.

What's In The Box

• Complete 4" stainless steel downpipe-back exhaust system
• Exhaust piping configured for the supported Cab & Chassis applications

Note: The factory downpipe is retained and is not included with this system. The supplied product information does not specify clamps, hangers, or other installation hardware. Confirm the exact package contents before installation.

Technical Specifications

Features

• Complete Downpipe-Back System: Replaces the exhaust downstream of the factory downpipe connection.
• 4" Exhaust Diameter: Provides a 4" exhaust path for the supported configuration.
• Stainless Steel Construction: Built from T409 stainless steel for corrosion resistance and durability.
• Cab & Chassis-Specific Routing: Designed for the exhaust layout used on compatible Ford commercial chassis trucks.
• Factory Downpipe Connection: Connects behind the original downpipe, allowing that component to remain in place.
• Application-Specific Fitment: Designed for F-350, F-450, and F-550 Cab & Chassis models without a centre-mounted rear fuel tank.

Benefits

• Purpose-Built Fitment: Uses exhaust routing intended for the commercial Cab & Chassis platform rather than a standard pickup.
• Stainless Steel Durability: T409 stainless steel provides resistance to corrosion in demanding operating environments.
• Retains the Factory Downpipe: No replacement downpipe is required for the intended configuration.
• Complete Downstream Coverage: Replaces the exhaust system behind the factory downpipe connection.
• Clear Vehicle Compatibility: Designed for specific model years and chassis configurations to help avoid ordering the wrong exhaust.

Installation & Important Notes

• Confirm that your truck is a 2011–2019 Ford F-350, F-450, or F-550 Cab & Chassis equipped with the 6.7L Powerstroke.
• Verify rear fuel-tank placement before ordering. Trucks with a centre-mounted rear fuel tank are excluded.
• Not compatible with standard pickup configurations.
• Connects behind the original factory downpipe.
• Inspect the existing downpipe connection before installation.
• Check clearance around the fuel tank, frame, suspension, and surrounding chassis equipment.
• Aftermarket service bodies, modified hitches, and relocated equipment may affect fitment.
• Professional installation is recommended, particularly on modified commercial chassis trucks.
• Confirm whether additional installation hardware or tuning is required for your intended configuration.

Important: This exhaust is intended for off-road or competition applications where permitted by applicable law. If installation involves removing or modifying required emissions equipment, additional restrictions may apply. Off-road use does not automatically make emissions modifications legal.

Frequently Asked Questions

Will this exhaust fit my 2015 Ford F-550 Cab & Chassis?
Yes. This exhaust is designed for 2011–2019 Ford F-350, F-450, and F-550 Cab & Chassis trucks equipped with the 6.7L Powerstroke, provided the truck does not have a centre-mounted rear fuel tank.

Does this exhaust fit an F-350 pickup?
No. This system is routed specifically for Cab & Chassis configurations and does not fit standard pickup models.

Will this fit an F-450 pickup?
No. The listed F-450 fitment applies to Cab & Chassis models only.

Does the rear fuel-tank location matter?
Yes. This system is not compatible with trucks equipped with a centre-mounted rear fuel tank. Confirm your fuel-tank arrangement before ordering.

What size is the exhaust piping?
The system uses 4" diameter exhaust piping.

What material is the exhaust made from?
The system is constructed from T409 stainless steel.

Is this a complete turbo-back exhaust system?
No. This is a complete downpipe-back exhaust system. It connects behind the factory downpipe rather than replacing the exhaust from the turbocharger outlet.

Does this exhaust include a new downpipe?
No. The system is designed to retain the original factory downpipe.

Will this fit a truck with an aftermarket service body?
Fitment depends on the body installation and whether the original exhaust routing and chassis clearances have been retained. Check for interference with relocated equipment before ordering.

Does this exhaust require tuning?
The supplied product information does not specify a tuning requirement. Whether tuning is needed depends on the exact exhaust configuration and the vehicle's existing equipment. Confirm compatibility before installation.

Is this exhaust legal for street use?
This system is intended for qualifying off-road or competition applications where permitted. Installation must comply with applicable emissions and vehicle regulations.