For diesel truck enthusiasts, performance upgrades are always a hot topic. One of the most common modifications discussed is installing EGR delete kits. While many owners know that deleting the Exhaust Gas Recirculation (EGR) system can reduce maintenance issues and extend engine life, one big question remains: how much horsepower can you actually gain with an EGR delete kit?
What Is an EGR Delete Kit?
The EGR system recirculates a portion of your engine’s exhaust gases back into the intake. This lowers combustion temperatures and reduces harmful emissions, but it also has a downside: soot and carbon buildup inside the intake manifold. Over time, this leads to clogged passages, reduced airflow, and a drop in performance.
An EGR delete kit disables or removes the EGR system, preventing exhaust gases from re-entering the intake. The result? Cleaner airflow, less carbon buildup, and improved engine efficiency.
The Horsepower Gains
So, how much power can you actually expect? While results vary depending on your truck, engine model, and supporting modifications, most drivers report gains of 10 to 20 horsepower with just the EGR delete.
However, when combined with other upgrades—such as a tuner, DPF delete (for off-road use), or upgraded intake and exhaust systems—the total gains can climb significantly higher. Some setups have been reported to unlock 40+ horsepower and noticeable torque improvements.
Why the Gains Matter
Even if 10–20 horsepower doesn’t sound like much, the difference is more than just numbers on paper.
- Improved Throttle Response: With no exhaust gases diluting the intake air, the engine breathes more freely, delivering quicker response when you hit the accelerator.
- Better Torque for Towing: Diesel engines are all about torque, and the gains from an EGR delete are especially noticeable when hauling heavy loads.
- More Consistent Performance: Without the EGR system causing carbon buildup, your truck maintains performance over time instead of gradually losing power.
Other Benefits Beyond Horsepower
While horsepower gains are exciting, many truck owners choose egr delete kits for other reasons:
- Lower Operating Temperatures: The engine runs cooler without hot exhaust gases circulating back into the intake.
- Reduced Maintenance Costs: No more clogged intakes or expensive EGR valve replacements.
- Extended Engine Life: Cleaner airflow means less stress on internal components.
- Improved Fuel Economy: Many owners see modest increases in miles per gallon since the engine runs more efficiently.
The Legal Side
It’s important to mention that EGR deletes, like other emissions-related modifications, are not legal for road use in many regions, including the U.S. under EPA regulations. They are generally intended for off-road or competition trucks only.
Installing an EGR delete kit on a daily-driven truck can lead to fines, failed inspections, and warranty issues. Always check local regulations before making modifications.
Real-World Example
A 6.7L Cummins owner might see about 15 horsepower and 30–40 lb-ft of torque with just an EGR delete. Paired with a tuner and intake upgrade, the gains become much more noticeable, making the truck feel stronger and more responsive during towing or highway driving.
Conclusion
So, how much horsepower can you gain with an EGR delete kit? On average, expect about 10–20 horsepower from the delete alone, with greater potential when combined with supporting upgrades. But the real value lies in reduced maintenance, cooler operating temps, and improved long-term reliability.
For many diesel owners, the horsepower gains are just the beginning—the real win is keeping your truck running stronger, cleaner, and longer.
