2011-2019 Powerstroke 6.7L 5" Downpipe Back Dual Exhaust (521008)
At Mel’s, every exhaust system starts with premium 16-gauge aluminized or stainless steel sourced directly from U.S. mills. Each bend, hanger, and flange is designed, welded, and finished in Alberta, Canada by tradespeople who actually build the real thing… not a 3D-scanned imitation of it.
Mel’s continues to manufacture with North American steel, North American equipment, and North American standards. The difference shows in the fit, the weld quality, the longevity, and the performance you feel under load.
Choose the original, not the scan.
Built in Alberta. Made from USA steel. Horsepower you can hear.
- Manufactured entirely in Alberta, Canada
- Zero copycat parts
- Pre-welded contour bends for a painless install
- Canadian-fabricated hangers for true OE-level fitment
- Stronger flanges, cleaner welds, and more consistent alignment than scanned clones
- Lower EGTs and improved airflow thanks to real engineering
- 1-31112NB(2-3)
- 1-31152NB(4-4)
- 1-50020(3-5)
- 1-Y500
- 1-31160(6-3)
- 1-31161(6-4)
- 1-31162(6-4)
- 1-31163(6-4)
- 6-LJ500
- 1-LJ400
- 1-H1
- 2- 7/16 x 2 3/4” FT Bolt
- 2- 7/16 Flanged Nut
- 4" Cat Pipe
- Fits F250/F350 Pickup, Auto Only
- Does not fit Regular Cab
Note: Removal of the spare tire is required for the 5 inch dual tail pipes. Exhaust system will need to be modified on 2017+ models with optional hitch prep package
*This product requires the use of aftermarket tuning. These parts are for use on non-registered race vehicles on closed-course competition events *Installing or using this part on any emission controlled vehicle ("street" or "off-road") may violate federal and/or state emissions laws and regulations. *Not available to ship to United States
Order Processing Time:
Orders are typically processed within 24-48 hours after the order has been placed.
Custom or special order items may take longer to process, typically 3-5 business days depending on the product and customization required.
Shipping Methods:
Standard Shipping (3-7 business days)
Expedited Shipping (2-3 business days)
Express Shipping (1-2 business days)
Packaging:
All parts are securely packaged to better prevent any damage during transit. Fragile or high-value parts will be packaged with additional protective materials, such as bubble wrap or foam padding.
Shipping Rates:
Shipping rates vary based on the size, weight, and destination of the package. You can view the estimated shipping costs for your order during the checkout process before placing your order.
Order Tracking:
Once your order has been shipped, you will receive an email with the tracking number and carrier information. You can also track your order status by logging into your OCDiesel account.
USA Shipping:
We ship to the USA! Please note that USA shipping rates and delivery times may vary based on destination. Customers are responsible for any customs fees, import taxes, or additional charges that may apply.
Not all products are stocked in-house. To ensure you receive your desired items promptly, please check for availability before placing your order. Some products may be backordered due to high demand or supply chain constraints, which could result in longer delivery times.
We strive to keep our inventory updated regularly, but availability can change quickly. For the most accurate information, contact the OCDiesel customer service team using either this link, or the chat bubble on the bottom right of this page.
Most items are eligible for return within 30 days of shipping, provided they are unused, in original manufacturer packaging, and in resalable condition. All returns & cancellations are subject to restocking and cancellation fees.
Returns must include a Return Authorization Number (RA #) and be shipped with tracking. Return shipping costs are the responsibility of the customer.
Custom/special orders, electronics, and digital goods are final sale—no returns, refunds, or exchanges.
For full return instructions, fee details, and conditions, click here.
