L5P TUNING PACKAGE (2017-2021)
Take your L5P to the next level with the best in the business! L5P Tuning Package includes everything you need to tune your 2017 - 2021 L5P Duramax. No need to delete your EGR or tamper with emissions equipment to get the best performance out of your truck. Our L5P Tuning Packages unlocks the power potential that you paid for when you bought the truck from the factory.
While the rated output for the L5P is 445 HP and 910 ft-lbs of torque it dyno'd 405 Rear Wheel Horsepower (RWHP) and 850 ft-lbs on our loaded chassis dyno. This is an improvement from previous models but pales in comparison to the +150 RWHP you'll have access to with our tuning.
Total flexibility to switch on the fly while driving between all five of our emissions intact custom tunes for your 2017, 2018, 2019 Chevy Silverado or GMC Sierra. No need to plug in a clunky box to re-flash your truck to change tunes. Giving you the power to tow light or heavy, fun 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.
Get Single or All Five Switchable L5P Custom Tunes
- Emissions Intact – no need to remove your emissions equipment
Do you need DuramaxTuner.com Switch-On-The-Fly (SOTF) Custom Tuning?
- 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 and emissions equipment
- DuramaxTuner has 14+ years of experience with Custom Switchable Tuning
- 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!
Sport Tune
- Peak Horsepower & Torque
- +150 RWHP + 270 ft-lbs
- Total 595 HP and 1180 ft-lbts
- 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
- 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 everyday
- Smooth 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
- 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
- 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
- Safe for Towing Heavy
- 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
- 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 of peak power
- Good for troubleshooting a physical problem with your truck
- Great for when someone else drives your truck
Required Options
Modified ECM Purchase (Engine Control Module)
- We stock modified ECM hardware and ship directly to you
- Remove your factory ECM and replace with our Modified ECM
- Flash our custom tunes using the MPVI2 Hardware and required HP Tuners Credits
- Ship us your factory ECM; we will refund you $400 when confirmed in working order
Transmission Tuning
10-Speed Allison Transmission for 2020+ L5P Duramax
Extra attention has been invested to develop our engine tuning for L5P’s with the 10-Speed Allison. Currently, there is no TCM Tuning available for these transmissions. However, we have spent countless hours going through every aspect of the ECM Tune File to ensure you have the best driving and most effective tuning possible.
- 6 Speed Allison TCM Tuning 2017-2019
The 6-Speed Allison found in your 2017-2019 L5P Duramax earned its reputation for excellence largely because of the advanced electronic control provided by the TCM (Transmission Control Module). Changing that factory calibration is especially important for you when you modify your truck and/or install ECM Tuning. Custom TCM Tuning gives you quicker shifts, smoother operation and an overall a better driving experience.
Why do you need TCM Tuning?
- Works with ECM Tuning to provide smooth shifting and superior drive-ability
- Torque converter lockup strategy helps you put power to the ground when you need it the most
- Improve clutch holding capacity with increased line pressure
- Makes your truck feel more powerful
- Prevents short-shifting in performance applications
- TCM Tuning in the best tool to ensure your engine is operating within its preferred rev range
TCM Tuning is especially important for trucks with:
- Custom ECM Tuning
- Larger tires (35”+)
- Modified turbo(s)
- Built transmission
- Any modification that impacts operating RPMs
Towing & Performance
- Use the wider torque curve provided by ECM Tuning
- Keep your truck in its power-band when lugging up a grade
- Quicker shifts mean less time between gears and more time putting power to the ground
- Optimize your aftermarket performance parts
Modified TCM Purchase (Transmission Control Module)
- We stock modified TCM hardware and ship directly to you
- Remove your factory TCM and replace with our Modified TCM
- Flash our custom transmission tune using the MPVI2 Hardware
- Ship us your factory TCM; we will refund you $200 when confirmed in working order
Custom L5P Tuning for Edge Insight CTS3(+) / Evolution - No Hardware
(2017-2019) L5P Switch On The Fly Remote Tuning Package w/ TCM Tuning Included
(2020-2023) L5P Switch On The Fly Remote Tuning Package w/ TCM Tuning Included
Switch on the Fly ECM / TCM Tune Incl. UNLOCK YOUR ECM & Credits L5P (2020-2023)
