A Powerstroke 6.7L Delete Kit (2011–2019 Ford F250/F350) paired with a 4-inch 409 stainless steel exhaust is a popular upgrade for performance-focused diesel owners. Below is a complete, practical guide covering what it is, what’s included, installation basics, and important considerations.
🔧 What Is a 6.7L Powerstroke Delete Kit?
A delete kit removes factory emissions components such as:
- DPF (Diesel Particulate Filter)
- EGR (Exhaust Gas Recirculation)
- DEF system (on later models)
These systems are replaced with performance parts, typically including a 4-inch exhaust system, allowing the engine to breathe more freely
🔥 Example Kit (All-in-One Setup)
Powerstroke 6.7L Delete Kit (2011–2019)
⚙️ Key Components Explained
1. 4-Inch Exhaust (409 Stainless Steel)
- Improves exhaust flow and reduces backpressure
- 409 stainless steel = strong corrosion resistance (ideal for trucks)
- Deeper, louder exhaust tone
Example:
4-inch DPF Delete Exhaust System
2. DPF Delete Pipe
- Replaces restrictive factory filter
- Eliminates regen cycles
- Improves MPG and throttle response
3. EGR Delete Kit
- Prevents soot buildup in intake
- Reduces engine temps
- Improves long-term reliability
4. Tuner / Programmer
- Required to prevent check engine lights
- Optimizes fueling and timing
- Unlocks horsepower gains (often +100HP depending on tune)
🚀 Performance Benefits
- Increased horsepower and torque
- Improved fuel economy (often +2–5 MPG)
- Lower exhaust gas temperatures (EGTs)
- Faster turbo spool and throttle response
- Reduced maintenance (no clogged DPF)
🛠️ Installation Overview
Skill Level: Intermediate to advanced
Basic Steps:
- Disconnect batteries
- Remove factory exhaust (DPF section)
- Install 4-inch delete exhaust
- Remove/replace EGR components
- Install tuner and load delete tune
- Check for leaks and test drive
Time Required:
- 4–8 hours depending on experience
⚠️ IMPORTANT: Legal Considerations
- Delete kits are NOT street legal in the U.S.
- Intended for off-road / race use only
- Can void factory warranty
- May fail emissions testing
