Upgrade your 2015–2019 Ford 6.7L Powerstroke diesel with this high-performance 4" High-Flow Downpipe — designed for maximum flow, faster turbo spool, and increased boost potential. Crafted from premium 304 stainless steel, this 2-piece downpipe is a direct bolt-on replacement for your factory unit and fits seamlessly with both stock and aftermarket turbochargers.

Whether you're driving an F250, F350, F450, or F550, this downpipe improves exhaust gas evacuation from the turbine, reduces backpressure, and supports emissions-modified off-road builds (where legal). If you're looking for an emissions system upgrade or prepping for tuning, this is the downpipe you need to unleash your Powerstroke’s true performance.

🔧 Fitment

• 2015 Ford F250 F350 F450 F550 6.7L Powerstroke Diesel

• 2016 Ford F250 F350 F450 F550 6.7L Powerstroke Diesel

• 2017 Ford F250 F350 F450 F550 6.7L Powerstroke Diesel

• 2018 Ford F250 F350 F450 F550 6.7L Powerstroke Diesel

• 2019 Ford F250 F350 F450 F550 6.7L Powerstroke Diesel

❓ What does a downpipe do?

The downpipe on a turbocharged diesel engine routes exhaust gases from the turbo’s turbine housing into the exhaust system. A stock downpipe is often restrictive, reducing turbo efficiency and power output.

Replacing it with a 4" high-flow downpipe:

• Reduces backpressure

• Improves turbo spool time

• Allows for more aggressive tuning

• Increases horsepower and torque

• Optimizes exhaust flow in tuned or deleted trucks

This upgrade is a must-have for diesel performance enthusiasts looking to remove bottlenecks in their exhaust system and push their Powerstroke to the next level.

✅ Key Features

• 2-piece 4" mandrel-bent tubing for easy installation

• High-grade 304 stainless steel for durability & corrosion resistance

• Bolt-on fitment with stock or aftermarket turbo setups

• No cutting or welding required

• Works with all exhaust systems compatible with the factory layout

• Ideal for use with delete kits and turbo-back systems (for off-road use only)

🔗 Looking for a complete setup?

Check out our All-in-One 6.7L Powerstroke Delete Kits including this downpipe, tuner, EGR delete, DPF delete pipe, and more — all in one complete package.

FAQ

Q1: Will this downpipe fit a 2017 F350 6.7L Powerstroke?

A1: Yes — this unit is designed for 2015–2019 F250/F350/F450/F550 Powerstroke diesels and fits factory turbo and exhaust systems.

Q2: Does this downpipe require tuning?

A2: While tuning is not required, we recommend it for maximum performance gains. It pairs well with DPF/EGR delete kits for off-road use.

Q3: Is this compatible with stock emissions components?

A3: This is intended for performance applications and may not be emissions-compliant in all regions. Check local laws before installation.

Q4: What material is this downpipe made from?

A4: It is crafted from premium 304 stainless steel, which provides excellent durability, heat tolerance, and corrosion resistance for long-lasting performance.

Q5: Will this downpipe work with my factory turbocharger?

A5: Yes, this 2-piece downpipe is a direct bolt-on replacement designed to fit seamlessly with both your stock turbo and most aftermarket turbochargers.

Q6: Does installation require any cutting or welding?

A6: No, there is no cutting or welding required. The 2-piece mandrel-bent design ensures a straightforward bolt-on installation.

Q7: What are the benefits of a 4-inch downpipe over the stock one?

A7: A 4-inch high-flow downpipe significantly reduces exhaust backpressure, improves turbo spool time, lowers exhaust gas temperatures (EGTs), and helps increase overall horsepower and torque.

Q8: Is this downpipe legal for street use?

A8: This product is intended strictly for off-road and closed-course racing use only. Removing or modifying emissions equipment may violate local laws, so please verify before purchasing.

Q9: How long does it take to install this downpipe?

A9: Installation typically takes about 2 to 4 hours, depending on your mechanical experience and the tools you have available. Professional installation is highly recommended.

Q10: Can I use this downpipe with a full turbo-back exhaust system?

A10: Absolutely. It is fully compatible with all exhaust systems that utilize the factory layout, making it the perfect starting point for a complete off-road turbo-back system.