6.7 Cummins Stage Two Upgrade





The All in one Stage Two Upgrade for the 6.7 Cummins 

  • Instantly Switch Between Power Levels
  • Total flexibility to select the power level you need
  • No need to plug in a clunky box and re-flash your truck to change tunes
  • Designed to be safe for your engine
  • Fully customized tuning with more than 100+ calibration changes from stock
  • No hacking wires into control units or fuel pump and turbo sensors
  • More power and less soot than box programmers

    *Tunes are more advanced with Higher horsepower and full Transmission (TCM) tuning

    *Due to the custom nature of aftermarket tuning this product is non returnable

    *This product is use at your own risk, we are not responsible for any damage caused by using these products

Transmission Tuning INCLUDED!

  • Fix the factory calibration without sacrificing reliability
  • Electronically controlled line pressure
    • Increased clutch pack holding capacity
    • Very Important for heavy towing and peak performance applications
  • Adjusted Shift Points
    • Allows for stretching the wide torque curve provided by custom tuning
    • Makes the truck feel more powerful
  • Torque converter lockup strategy
    • Getting rid of the short-shifting
    • Use all of the potential power your engine has to offer


  • EzLynk 3.0
  • ECM and TCM custom calibration (SOTF 5 Powerlevels)
  • Bypass cable
  • Shift on the fly switch and mount
  • Stainless or Aluminized pipe
  • EGR upgrade


Sport Tune (Level 5)  **dyno numbers will vary**

  • Peak Horsepower & Torque
    • Manual Transmission – 460HP and 840 ft-lbs
    • 68RFE Transmission – 485HP and 980 ft-lbs
    • Aisin Transmission – 499HP and 1045 ft-lbs
    • Fastest possible acceleration
    • Firm shifting
    • No dead pedal
    • Biggest adrenaline rush we can give you
  • Inappropriate use of the Sport Tune
    • Too much power for towing without the proper gauges
    • Enough power for an irresponsible driver to damage his truck

Street Tune (Level 4) 

  • Improved Horsepower & Torque
    • Manual Transmission – 420HP and 804 ft-lbs
    • 68RFE Transmission – 455HP and 944 ft-lbs
    • Aisin Transmission – 475HP and 1009 ft-lbs
    • No dead pedal feeling
    • Most power & torque you can add while maintaining OEM levels of
    • reliability
    • Fast acceleration – Truck feels lighter
  • Mix of Fun and Superior Drive-ability
    • Love driving the truck every day
    • Smooth power curve
    • The throttle pedal responds exactly how you want it to
    • Retain factory turbo-braking feature

Light Tow (Level 3) 

  • Balance between Daily Driving and Towing
    • Smooth power curve that’s fun to drive
    • Premium EGT management
    • Air-Fuel Ratio limits built into calibration to limit soot production
    • Designed to tow less than 8,000 lbs.
    • Factory turbo brake retains complete functionality
  • Horsepower & Torque Increase 
    • Manual Transmission – 395HP and 732 ft-lbs
    • 68RFE Transmission – 425HP and 872 ft-lbs
    • Aisin Transmission – 445HP and 937 ft-lbs
    • Get your truck up and moving more quickly
    • More useable power in all driving scenarios
    • Have enough power to “Shift Up, Throttle Back”
  • Revised pedal sensitivity
    • Low-speed trailer maneuvering
    • Back up with trailer without lurching

Heavy Tow (Level 2)

  • Safe for Towing Heavy
    • Increase power, not EGTs (Exhaust Gas Temperature)
    • Air-Fuel Ratio limits built into calibration to limit soot production
    • Designed to tow 8,000 lbs. up to GVW
    • Factory turbo brake retains complete functionality
  • Horsepower & Torque Increase
    • Manual Transmission – 375HP and 696 ft-lbs
    • 68RFE Transmission – 405HP and 836 ft-lbs
    • Aisin Transmission – 415HP and 900 ft-lbs
    • Get your trailer up and moving more quickly
    • Lug in the gear you want while towing
    • Have enough power to “Shift Up, Throttle Back”
  • Revised pedal sensitivity
    • Low-speed trailer maneuvering
      Back up with trailer without lurching

Optimized Stock (Level 1) 

  • Slight revisions to factory calibration
  • No significant increase of peak power
  • Good for troubleshooting a physical problem with your truck
  • Great for when someone else drives your truck

EZ Lynk AutoAgent™ 3.0 Hardware Included

    • The most user-friendly flash (programming) hardware we’ve ever used to load our tunes
    • 3 simple steps to load our custom tunes on your vehicle
    • Only takes a few minutes
    • Use your iOS or Android Smartphone
    • Stream and monitor data not available on your vehicle’s factory instrument panel
    • Read and clear diagnostic trouble codes with the tap of a finger
    • Send us real-time data logs on your truck if troubleshooting needed
    • Select from over 25 different PIDs using 3 customizable gauge screens
    • Automatic firmware updates
    • Required EZ Lynk “tokens” included in our price



Customer Notification and Disclaimer of Liability. This is a race-only, off road, competition use product. It is not legal for sale or use on pollution controlled vehicles that are driven on public streets, roads, or highways. Buyer’s use or installation of this product for itself or for Buyer’s customer is at Buyer’s own risk. The Buyer is responsible for obeying federal, state, and local laws. Only Buyer can determine end customer’s use and thus assumes any and all liability hereby waiving any and all claims against MDM performance (Modern Diesel)  in the sale of this product to the maximum extent permissible by law.

Make sure to abide by all local, state, and federal laws, including emissions, vehicle safety, and traffic laws. It is Buyer’s responsibility to know what those laws are and how they apply to Buyer or Buyer’s customer. This product is designed and intended solely for legally-organized and sanctioned, closed-course, off-road competition use and is not for use on public streets, roads, or highways.  Use on public streets, roads, or highways is a violation of federal and certain state (including California) and local environmental laws

By Purchasing this upgrade kit you are acknowledging the above stated disclaimer and accepting full legal responsibility to abide by all state, local, and Federal laws.

Stage one and two kits are designed for engines swapped into pre-pollution controlled vehicles, or vehicles 2005 or older. They are not for use and will not work in 2006 or newer registered emissions-controlled vehicles operated on public highways and roads.

Prop 65WARNING: Cancer & Reproductive Harm – P65Warnings.ca.gov


Additional information


10-12, 13-18, 19-21


4", 5"

Exhaust Material

Stainless, Aluminized