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DiabloSport 8266-R inTune 3 Performance Tuner 2020-2023 6.6L L8T Gas ECM Unlock Kit

(2020-2023 Chevrolet Silverado 2500 HD; 2020-2023 Chevrolet Silverado 3500 HD; 2020-2023 GMC Sierra 2500 HD; 2020-2023 GMC Sierra 3500 HD)

Manufacturer

Picture for manufacturer DiabloSport

Part Number

8266-R
5 reviews
Sale Price

$868.95

In Stock (10+)

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Usually delivered within 2 days

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The DiabloSport inTune 3 Performance Tuner (8266-R) is a complete unlock and tune solution designed specifically for 2020-2023 Chevrolet Silverado and GMC Sierra 2500/3500 trucks equipped with the 6.6L L8T gas engine. This powerful tuning device includes ECM unlock capability, allowing you to unlock and tune your truck's computer from the comfort of your own garage.

Performance Gains:

  • Up to 28 rear wheel horsepower gain over stock on premium fuel
  • Up to 50 rear wheel torque gain over stock on premium fuel
  • Preloaded performance tunes optimized for multiple octane levels
  • Adjustable fueling at wide-open throttle across multiple RPM ranges

Advanced Features:

  • ECM unlock included for complete tuning capability
  • Speed limiter removal for increased top speed potential
  • Transmission adaptive relearn function
  • Air filter monitor system control
  • Front and rear TPMS threshold adjustment
  • User-friendly interface for at-home tuning

The inTune 3 puts professional-grade tuning power in your hands, allowing you to maximize your truck's performance while maintaining proper engine management. The device is designed for easy use and includes multiple calibrations to match your fuel quality and performance needs.

Products specifications

Fits

2020-2023 Chevrolet Silverado 2500 HD; 2020-2023 Chevrolet Silverado 3500 HD; 2020-2023 GMC Sierra 2500 HD; 2020-2023 GMC Sierra 3500 HD

5 Volt Data Logging Inputs

Yes

50 State Legal

No

Accepts Custom Tunes From CMR

Yes

Brand

DiabloSport

Prop 65

Yes

CARB (California) Compliant

No

Category

Tuners and Programmers

Color Touch Screen Display

Yes

Custom Tuning

Yes

Data Logging

Yes

Emission Code

7

Erases Fault Code

Yes

Fuel Type

Gasoline

Grade Type

Performance

Grade Type

Regular

Instruction Manual Included

Yes

Part Type

Computer Chip Programmer

Performance Tunes

Yes

Personal Computer and Mac Compatible

Yes

Product Type

Handheld Tuner

Software Included

Yes

Speedometer

Yes

Sub Category

Engine Service

Systems Covered

Transmission

Systems Covered

Engine

Upgradable

Yes

Warning

California Proposition 65

Wi-Fi Updates

Yes

Great price, easy transaction

So far alright

Awesome price that no one can match!

Easy finding part and good pricing

Shipping wasn't on time That's Only problem.

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Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy