2020-2025
2015-2019
2007-2014
Installation Time
(approx) 15 Minutes
Difficulty Level:
Simple installation for anyone.
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Diablosport inTune 3 Tuner with ECM Unlock (20-23 6.6L Gas Sierra 3500 HD)Find parts that fit my vehicle
Item SHG40017
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$629.96
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Product Information
Features, Description, Q&A, Specs & Installation
Features
- inTune 3 Tuner
- Customizable Tuning Options
- Easy-to-Use Interface
- Improves Fuel Efficiency
- Boosts Engine Performance
- Fifteen-Minute Installation
- One-Year Limited Warranty
- Fits 2020-2023 6.6L Gas Sierra 3500 HD Models
Description
Customizable. One of the standout features of this Diablosport inTune 3 Tuner is its customizable tuning options. With the inTune 3 Tuner, you have the ability to adjust various engine parameters to optimize your vehicle's performance. Whether you're looking for improved horsepower, torque, fuel economy, or a balance between the three, this tuner allows you to fine-tune the settings according to your specific driving needs and conditions. By customizing the tuning options, you can unlock the full potential of your Sierra 3500 HD and enjoy a personalized driving experience.
Design. One of the standout features of this Diablosport inTune 3 Tuner is its customizable tuning options. With the inTune 3 Tuner, you have the ability to adjust various engine parameters to optimize your vehicle's performance. Whether you're looking for improved horsepower, torque, fuel economy, or a balance between the three, this tuner allows you to fine-tune the settings according to your specific driving needs and conditions. By customizing the tuning options, you can unlock the full potential of your Sierra 3500 HD and enjoy a personalized driving experience.
Efficient. In addition to its tuning capabilities, the Diablosport inTune 3 Tuner can also improve your vehicle's fuel efficiency. By fine-tuning the engine's parameters, you can achieve better combustion efficiency, resulting in reduced fuel consumption. This not only saves you money at the pump but also contributes to a greener and more sustainable driving experience. With the inTune 3 Tuner, you can enjoy improved fuel economy without sacrificing performance.
Performance. The ECM Unlock capability of the Diablosport inTune 3 Tuner allows you to unlock the full potential of your engine. By accessing and modifying the parameters controlled by the ECM, you can achieve significant improvements in power and responsiveness. This is particularly beneficial in demanding driving situations such as towing heavy loads or navigating challenging terrains. The boosted engine performance provided by the inTune 3 Tuner ensures that your Sierra 3500 HD can handle any task with ease and confidence.
Installation. Putting this Diablosport inTune 3 Tuner with ECM Unlock on your Gas Sierra 3500 HD takes 15 minutes to install.
Warranty There is a 1-year limited warranty on this product.
Application. The Diablosport inTune 3 Tuner with ECM Unlock fits 2020-2023 6.6L Gas Sierra 3500 HD models.
Fitment:
- 2020 GMC Sierra 3500
- 2021 GMC Sierra 3500
- 2022 GMC Sierra 3500
- 2023 GMC Sierra 3500
Diablosport 8266-R
CA Residents: 
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Installation & What's in the Box
Installation Info
What's in the Box
- (1) inTune 3 Tuner
- (1) USB Cable
- Instructional Manual
4.7
Reviews of Diablosport Tuner Products (437)
Reviews of Diablosport Tuner products have an average rating of 4.7 out of 5
Questions & Answers
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Will It Fit My Sierra 3500
- 6.6L V8 - 20, 21, 22, 23
