DiabloSport Trinity 2 Tuner Kit with ECM Unlock for 2020-2023 Silverado and Sierra 2500HD 3500HD 6.6L L8T Gas - 9266-R

The DiabloSport 9266-R is a tuner kit for 2020-2023 Chevrolet Silverado and GMC Sierra 2500HD and 3500HD trucks with the 6.6L L8T gas V8. It pairs the Trinity 2 five-inch touchscreen tuner and monitor with the locksmith device and ECM harness needed to unlock the factory-locked ECM in the driveway. After tuning, the Trinity 2 stays on the dash as a full gauge display.

Preloaded tunes for several octane levels deliver up to 28 rear-wheel horsepower and 50 lb-ft over stock on premium, and the 6-speed gets a choice of Firm or Hard shift calibrations.

Vehicle compatibility

• 2020-2023 Chevrolet Silverado 2500HD and 3500HD with the 6.6L L8T gas V8
• 2020-2023 GMC Sierra 2500HD and 3500HD with the 6.6L L8T gas V8
• Handheld versions of this kit: Predator 2 7266-R and inTune i3 8266-R

Tuning and monitoring features

• ECM unlock hardware included; unlock and tune at home
• Preloaded multi-octane tunes with Firm and Hard 6-speed shift calibrations
• Throttle Boost, speed limiter removal, rev limiter plus or minus 400 rpm, idle speed adjustment
• Speedometer correction for 26-38 inch tires and 3.42-5.13 gears
• Front and rear TPMS thresholds, Keep Drive Mode Setting, transmission adaptive relearn
• 5 inch color touchscreen with customizable gauge layouts and backgrounds, auto-dimming
• Data logging, performance tests, read and clear trouble codes, Wi-Fi updates
• Expandable Accessory System (EAS) port for adding pressure, temperature or wideband inputs

What is in the box

• Trinity 2 display
• Windshield mount
• OBD-II cable
• Locksmith unlock device and ECM harness
• Instructions

Installation and limitations

Unlock the ECM once with the locksmith and harness, then plug the Trinity 2 into the OBD-II port, mount it, and load a tune. It boots to your gauge screen on every key cycle. Add sensors through the EAS port, for example the EAS Wideband Input 98622.

Specifications

• Part number: 9266-R
• Brand: DiabloSport
• Warranty: 1 year manufacturer warranty
• Country of origin: United States
• Packaged size: 10 x 7 x 4 in, 2 lb
• UPC: 810065217400

Frequently asked questions

Is this a tuner or a monitor?

Both. It unlocks and tunes the truck, then stays mounted as a touchscreen gauge display with data logging and alerts.

How much power does it add?

DiabloSport publishes up to 28 rwhp and 50 lb-ft over stock on premium fuel.

Do I have to pull the ECM?

No. The harness connects to the module in the truck and the unlock is done in the driveway.

Can I add gauges for things the truck does not report?

Yes. The EAS port accepts DiabloSport and Edge EAS accessories for pressure, temperature and wideband inputs.