FAQ
Q: Do I need a tuner after EGR deleting on the 6.7 Cummins?
A: Yes, a tuner is required after EGR delete to prevent error codes and check-engine lights. While some kits claim to work without a tuner, the engine’s ECU will detect the missing emissions components, leading to diagnostic trouble codes (DTCs). To avoid this, we recommend pairing your delete kit with a tuner designed for delete applications, such as the H&S Mini Maxx or EFI Live.
Q: Can I drive my 6.7 Cummins before the matching tune is installed?
A: Do not assume the truck can be driven normally after hardware changes without the required calibration. Confirm the tuning and installation sequence for the exact kit before removing factory components.
Q: Will a Ram 2500 pickup kit fit a Cab & Chassis truck?
A: Not automatically. Cab & Chassis trucks can use different exhaust routing, dimensions, and calibration requirements, so the product must explicitly list that truck type.
Q: What should I check before installing a Cummins full delete kit?
A: Compare the packing list with your selected options and verify the DPF/DEF exhaust hardware, EGR parts, clamps, coolant-routing parts, CCV option, tuner or tune access, and instructions. Stop before disassembly if anything required is missing.
Q: Are 6.7 Cummins delete kits legal for street use?
A: They are not intended for emissions-controlled public-road vehicles. Rules vary by location, so check the laws that apply where the truck will be operated before purchase or installation.
Q: Can I delete a 6.7 Cummins without removing the EGR?
A: Yes, you can delete the 6.7 Cummins without removing the EGR system, but for optimal performance, an EGR delete is always recommended.
Q: What is a full delete on Cummins?
A: A full delete removes all factory-installed emissions control systems, including the DPF, EGR, and DEF systems. This process involves installing high-flow exhaust and intake components and reprogramming the truck's ECU to eliminate emissions-related software.
Q: How much does a delete kit cost?
A: To fully delete a 6.7 Cummins, the price ranges from $ 1,500 to $ 5,500. The cost of a Cummins delete kit varies depending on the components included. On average, expect to pay:
- EGR delete kit: $400–$700
- DPF delete kit: $700–$1,200
- DEF delete kit: $200–$400
- CCV deletes: $40-$250
- Tuner: $600-3000
Disclaimer SPETUNER’s delete kits are intended for off-road or racing use only. They may not be street-legal in all areas, so please verify local laws before installation. Professional installation is strongly recommended to ensure the best results.