2019-2023 L5D Duramax EZ Lynk 5 Tune Pack ECM Tuning

Calibrated Power Solutions - L5D Tuning Package includes everything you need to tune your 2019 - 2023 L5D 6.6L Duramax in your Chevy 4500, 5500, or 6500 Medium Duty truck. Does NOT delete or tamper with emissions equipment to get the best performance out of your truck. 

Factory rated output for the 6.6L L5D Duramax Diesel engine comes in at just 350 HP and 700 ft-lbs of torque which is a far cry from the 445 HP and 910 ft-lbs found in its sibling L5P equipped standard on the 2500 and 3500 pickups. Calibrated Power's L5D Tuning Packages unlock the power potential that you paid for when you bought the truck from the factory.

Total flexibility to switch between all five of emissions intact custom tunes for your 2019, 2020, 2021, 2022 or 2023 GM Cab and Chassis Medium Duty truck.  Lightning fast tune installation with EZ Lynk Autoagent 3. Gives you the power to tow light or heavy with ease, improved daily driving, and the most we can unleash from your engine.  Have the cleanest and most reliable tunes available with the power level you need right at your fingertips.

Do you need DuramaxTuner.com FIVE Tune Pack?

• Total flexibility to select the power level you need  
• Designed to be safe for your engine and emissions equipment
• 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
• World Class Customer Service Phone Support!

Custom ECM Tunes

Sport Tune

• Peak Horsepower & Torque
• +125 RWHP + 240 ft-lbs
• Total 445 HP and 890 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

• Improved Horsepower & Torque
• +100 RWHP + 180 ft-lbs
• Total 420 HP and 830 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
• Perfect for daily driving and merging into traffic
• Smooth and wide power curve
• The throttle pedal responds exactly how you want it to
• Retain factory turbo-braking feature

Light Tow

• Balance between Daily Driving and Towing
• Smooth power curve that’s fun to drive
• Truck is more responsive with a load
• Custom “SMART EGT Control” will automatically manage your EGTs
• 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 +80 RWHP +144 ft-lbs
• Total 400 HP and 790 ft-lbs
• Get your truck up and moving more quickly
• Lug in the highest gear while towing on the highway
• 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

• Safe for Towing Heavy
• Fix the sluggish towing performance of your L5D
• Handle steep grades with ease
• Maintain cruise control speed while towing
• Increase power, not EGTs (Exhaust Gas Temperature)
• Custom “SMART EGT Control” will automatically manage your EGTs
• 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 +40 RWHP + 72 ft-lbs
• Total 360 HP and 720 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

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

TCM Tuning (Recommended Option)

• Fully remote TCM tuning – Now Available for 6 and 10 speed trucks
• Unlock your factory TCM using the included EZ Lynk Device
• Tune your TCM using the included EZ Lynk Device

Benefits:

• Utilize a wider torque curve when paired with ECM Tuning
• Improved torque converter lockup strategy 
• Increased line pressure for better clutch holding capacity  
• Quicker shifts for less loss of power between gears
• Keep your truck in its power band when lugging up a grade
• Makes your truck feel more powerful
• Multiple TCM tune files to choose from (elevated/standard)

Hardware

EZ Lynk AutoAgent™ 3.0 Hardware (Required Option)

• • 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