The 6.7 Cummins engine is a powerhouse, known for its torque and reliability. But many owners seek to unlock even more potential, often turning to tuning and deleting emissions equipment. This guide explores the world of 6.7 Cummins tuning with deletes, addressing common questions and concerns. We'll examine the benefits, drawbacks, and important considerations before embarking on this modification journey.
What are Deletes on a 6.7 Cummins?
"Deletes" refer to removing or disabling emissions control components. On a 6.7 Cummins, this typically involves removing or bypassing the Diesel Particulate Filter (DPF), Exhaust Gas Recirculation (EGR) system, and Selective Catalytic Reduction (SCR) system. These components are designed to reduce harmful emissions, but their presence can restrict engine performance and potentially lead to costly repairs. Deleting them allows for increased airflow and fuel efficiency, often resulting in noticeable power gains.
What are the Benefits of Tuning a 6.7 Cummins with Deletes?
The primary benefit is a significant increase in horsepower and torque. By removing the restrictions imposed by the emissions system, the engine can breathe more freely and burn fuel more efficiently. This translates to improved towing capacity, quicker acceleration, and an overall more responsive driving experience. Many tuners also offer custom calibrations to fine-tune the engine's performance characteristics based on individual needs and preferences.
What are the Drawbacks of Tuning a 6.7 Cummins with Deletes?
While performance gains are significant, it's crucial to acknowledge the downsides:
- Legality: Removing emissions components is illegal in many jurisdictions. Operating a vehicle with deleted emissions systems can result in hefty fines and even vehicle impoundment. Regulations vary by location, so it's vital to research your local laws before proceeding.
- Increased Emissions: Deleting the emissions systems leads to increased emissions of pollutants. This contributes to air pollution and can have negative environmental consequences.
- Potential for Damage: Improper tuning can potentially damage the engine. It's essential to use a reputable tuner with proven experience and expertise in 6.7 Cummins engines.
- Warranty Void: Modifying your engine's emissions system will almost certainly void your vehicle's warranty. Any engine-related problems will likely be your responsibility to repair.
How Much Horsepower Can I Gain with a 6.7 Cummins Tune and Deletes?
The horsepower gains vary widely depending on the specific tuner, tuning level, and other modifications. Generally, you can expect gains ranging from 50-150 horsepower or more, but this is not a guaranteed outcome. Some tuners offer multiple tuning levels, allowing you to adjust the performance increase to your preferences and the capabilities of your vehicle.
What is the Best Tuner for a 6.7 Cummins with Deletes?
There's no single "best" tuner. Reputable tuners offer various features, tuning styles, and levels of support. Researching different tuners and reading reviews from other 6.7 Cummins owners is crucial. Consider factors such as customer support, tuning options, and the tuner's reputation within the diesel community. Many reputable tuners offer custom tuning options to match individual needs and driving styles.
Is it Worth Tuning My 6.7 Cummins with Deletes?
The decision to tune your 6.7 Cummins with deletes is a personal one, weighing the performance gains against the potential risks and legal implications. It's vital to conduct thorough research, understand the potential consequences, and carefully consider your priorities. The increased performance is undeniable, but the legality and environmental impact must be carefully evaluated.
Conclusion
Tuning a 6.7 Cummins with deletes can significantly enhance performance but demands careful consideration of legal, environmental, and mechanical factors. Thorough research, responsible decision-making, and working with a reputable tuner are crucial for a successful and safe modification. Always prioritize safe and legal operation of your vehicle.
