Ram Cummins Performance Parts

The best delete kit for the 6.7L Ram Cummins is a comprehensive DPF, EGR, and DEF delete bundle, paired with a reliable EZ Lynk tuner or EFI Live.

These kits offer maximum power gains and long-term reliability for off-road use.

Look for kits that include:

• Race pipe or full exhaust: replaces the DPF and СAT system


• EGR delete kit: block-off plates, coolant reroute, and fittings


• DEF delete plug or simulator


• Tuner with preloaded delete tunes (EZ Lynk) or custom calibration support (EFI Live).


• Optional muffler: to reduce exhaust noise

An EGR delete kit for the 6.7 Cummins removes the Exhaust Gas Recirculation (EGR) system, keeping hot exhaust gases out of the intake.

By eliminating the EGR system, the engine experiences less soot buildup, lower intake temperatures, and overall cleaner combustion. Key benefits include:

• Lower EGTs and cooler intake air


• Improved throttle response


• Less carbon buildup on valves and turbo


• Blocks exhaust flow into the intake, reducing heat and soot buildup

The kit usually includes block-off plates, hardware, and coolant reroute components.

A complete delete kit for the Ram 6.7 Cummins includes everything needed to remove DPF, EGR, and DEF systems, along with a tuner to reprogram the ECU.

Typical contents:

• DPF delete pipe or complete exhaust system


• EGR delete hardware (plates, fittings, coolant lines)


• Tuner (EZ Lynk with preloaded delete tunes or EFI Live with custom calibrations)


• Mounting hardware and instructions

Some kits also include an optional muffler to tone down exhaust volume.

A complete delete kit removes the DPF, DEF, and EGR systems, while an EGR-only kit deletes just the EGR system.

Here’s how they compare:

• 
  EGR-only kit:
  
  
  
  • Removes EGR valve and cooler
  
  
  • Improves throttle response
  
  
  • Always requires a tuner to ensure proper ECU function and prevent error codes
  
  
  
  


• 
  Full delete kit:
  
  
  
  • Eliminates all emissions systems
  
  
  • Includes a delete tuner
  
  
  • Offers +50–150 HP and up to +5 MPG fuel savings
  
  
  • Ends regen cycles and DEF refills
  
  
  
  

For full performance and reliability gains, the full delete is the better choice.

Yes, a tuner is typically required to prevent the check engine light from activating and ensure the ECU operates correctly after deleting the EGR. In some cases, the truck might run with just the hardware removed, but without a tune:

• You'll get warning lights and possible limp mode


• ECU may detect EGR system failure

A tuner is needed because it:

• Adjusts fuel maps for stable operation


• Ensures compatibility with other deletes if installed later

Recommended tuners include EZ Lynk, Mini Maxx V2, and EFI Live. A properly calibrated system guarantees smooth, error-free performance.