4″ T409 Unpolished Diesel Performance Exhaust Muffler | 6.7L Ford Powerstroke 2017-2019

For OFF-ROAD and RACING Use Only




More payment options

payment methods

We guarantee secure & safe checkout


For OFF-ROAD and RACING Use Only

Enhance the sonic signature of your truck while also improving its performance with our Diesel Performance Exhaust Muffler. Available in two models: T409 Unpolished 4 inch Muffler and T304 Polished 5 inch Muffler, you have the power to choose the best fit for your ride.

Vehicle Fitment

Our mufflers are a universally designed to fit a wide array of diesel vehicles, ranging from Cummins to Duramax and Powerstroke. And When Paired with Black Bandit Exhaust Systems that come with pre-bent and pre-welded hangers, installation is a breeze—everything just fits right into place, making it a perfect upgrade for both classic diesel relics and shiny new trucks straight off the lot.

Product Options

Material T409 Unpolished
Stainless Steel
Inlet Size 4-inch inner diameter
Outlet Size 4-inch inner diameter
Overall Length 20.25 Inches
Body Length 14 inches
Body Size 7-inch round

Product Features

Each of our mufflers boasts an array of features, all designed to deliver superior flow, rich throaty sound, and lifelong protection. Key features include:

  • Straight-through flow path for maximum performance
  • Non-directional design – install whichever way suits your setup
  • Stainless steel construction for lifelong protection
  • Internal stainless steel mesh & fiberglass construction to withstand harsh conditions and advanced technology to absorb unwanted interior resonance.
  • Straight-through design to reduce back pressure and enhance performance

Our exhaust systems are expertly crafted from mandrel-bent steel, providing one of the most diverse range of options on the market.

The Black Bandit Diesel Performance Exhaust Muffler is not just a component—it’s an upgrade that transforms your drive. Experience the difference today!

To top off your exhaust system, consider our  exhaust tips – the perfect finishing touch to the best sounding exhaust in the industry!

  • Off-Road Use Advisory: Products available through TheDPFDelete are exclusively intended for off-road applications. They may not adhere to the regulations governing public roadway usage.
  • Local Law Compliance: Customers are advised to verify that the installation and use of these modifications comply with their local and state regulations before proceeding with their purchase.
  • Installation Guidance: For optimal performance and safety, the installation of these components by qualified mechanics is highly recommended. Due to the specialized nature of these parts, they may not include installation instructions and could necessitate slight adjustments or modifications for compatibility with specific vehicles. TheDPFDelete will not accept returns or offer refunds for components not successfully installed due to the absence of instructions.
  • Warranty Notice: Implementing these aftermarket parts will invalidate your vehicle’s warranty. We encourage consulting with your vehicle’s manufacturer prior to the purchase and installation of any parts to understand the potential implications fully.
  • Liability Disclaimer: TheDPFDelete assumes no liability for any issues or damage arising from the installation or use of these parts.
  • Product Representation: The images depicted on our website serve illustrative purposes and may not precisely reflect the current design of the products due to ongoing updates or enhancements made by the manufacturers.
  • Performance Outcome: While these parts are designed to augment your vehicle’s power output, TheDPFDelete does not guarantee specific levels of performance enhancement following their installation.


At TheDPFDelete, we recognize how crucial timely delivery is for our customers who are eager to enhance their vehicles with performance parts. Our commitment to expedited shipping is designed to ensure a smooth and efficient delivery process. We strive to dispatch all orders within two business days, though it’s important to remember that shipping times may occasionally be influenced by external factors.

Estimated Delivery Times

Get ready for a streamlined upgrade experience! Here’s what you can expect:

  • DPF Delete Tuners: Lightning-fast, arriving within just 3-4 days after your purchase to kickstart your performance boost.
  • Delete Pipes and Exhausts: Following closely, delivered in 5-6 days after ordering to enhance your setup.
  • EGR Delete Kits: Right on time, arriving on the 5th day to complete your upgrade.

Please note that these delivery times are estimates and may vary due to unforeseen circumstances. Each item is shipped by a different postal service, ensuring timely arrivals.

Factors Influencing Delivery Timelines:

  • Weather Conditions: Our swift and efficient order processing might be impacted by adverse weather conditions such as rain, snow, or sleet. Rest assured, we’ll make every effort to navigate these challenges and minimize any potential delays.
  • Holiday Schedules: Please note that our shipping center observes holidays and will be closed during these times. Shipping will resume on the next business day. Peak holiday seasons might introduce delays, but we promise to keep you updated and expedite your order’s delivery whenever possible.
  • Staffing Levels: While we pride ourselves on our exceptional team, unforeseen events can sometimes affect our staffing, potentially leading to slight delays. We are committed to quickly addressing these issues to uphold our high service standards.
  • Direct Shipments from Manufacturers: Some exhaust systems and additional items available at our shop may be shipped directly from the manufacturer, which could extend delivery times to 3-6 weeks. We are dedicated to leveraging every available resource to ensure your performance parts reach you as swiftly as possible.

We genuinely appreciate your patience and understanding should we face any unexpected hurdles along the way.

Our Commitment:

Thank you for choosing TheDPFDelete. Our enthusiasm for performance vehicles drives our dedication to providing exceptional customer service, including doing everything in our power to ensure your order arrives on time and as expected. If you have any questions about your order or our shipping policy, please don’t hesitate to reach out. Our team is here to assist and ensure your experience with us is nothing short of excellent.


For Off-Road/Racing Use Only: Products on this online store are for OFF-ROAD and RACE Use Only. They may not be legal on public roads due to emissions laws.

Check Your Local Laws: Before buying or installing, please check your local laws. Using them on public roads сan violate emissions regulations.

Discover Why Our Customers Love Us!

We pride ourselves on customer satisfaction. Discover real reviews from trusted sites and share your own experience:

Read and rate us!
Join our community of satisfied customers.
Explore stories from truck owners like you.
Shopping cart0
There are no products in the cart!
Continue shopping