Description
Superchips Flashpaq with ECM Unlock for 2020-2023 GM 6.6L L8TUnlock and tune your 2020-2023 GM L8T powered truck at home with our 2866-R Flashpaq kit! We provide our industry exclusive Locksmith device and ECM harness with our popular Flashpaq handheld device to give you the ability to tune without removing the ECM. Once unlocked, the provided tunes can add solid power to your 6.6L gas truck, while also improving throttle response, shifting, and more. Tunes for 87 octane, and premium fuel are provided, as well as tunes for the 6 speed transmissions. We even provide adjustments like throttle boost, speed limiter and tire size to name a few!
- Supports 2020-2023 Silverado/Sierra 2500/3500 6.6 L8T
- Performance TCM tune for optimized transmission behavior
- Correct Speedometer for Tire Size
- Set final drive ratio
- Adjust Rev Limiter
- Set Idle RPM in Drive/Neutral
- Remove Speed Limiter
- Adjust Throttle Sensitivity
- Recall Last Mode Setting
- Front/Rear TPMS Threshold Adjustment
- Transmission Adaptive Relearn
- Crank Position Sensor Relearn
- Control Intake Filter Monitor system
- Monitor real-time data
- Read and clear DTCs
- Up to 28 RWHP/50 RWTQ over stock on premium fuel
Information:
ECM Must be unlocked prior to using the Flashpaq to tune the vehicle. Once unlocked, the locksmith/harness is no longer needed.
Application Summary:
| Year | Make/Model |
|---|---|
| 2020-2023 | Chevrolet Silverado 2500 HD |
| 2020-2023 | Chevrolet Silverado 3500 HD |
| 2020-2023 | GMC Sierra 2500 HD |
| 2020-2023 | GMC Sierra 3500 HD |
| Attributes | |
| 5 Volt Data Logging Inputs | No |
| 50 State Legal | No, No |
| AC Adapter | No |
| Accepts Custom Tunes From CMR | No |
| Body Material | ABS |
| Brand | Superchips, Superchips |
| CARB (California) Compliant | No, No |
| Case Included | No |
| Category | Vehicles, Equipment, Tools, and Supplies, Vehicles, Equipment, Tools, and Supplies |
| Check Clear DTCs | Yes |
| Color Display | Yes, Yes |
| Color Screen | Yes |
| Color Touch Screen Display | No |
| Country of Origin (Primary) | US |
| Custom Tuning | No, No |
| Data Logging | Yes, Yes |
| Emission Code | 7, 7, Not in CA |
| Erases Fault Code | Yes, Yes |
| Fuel Type | Gas, Gasoline |
| Grade Type | Performance, Performance |
| Harmonized Tariff Code (Schedule B) | 8512204040 |
| Hazardous Material Code | N |
| In Cab Monitoring | No |
| Instruction Manual Included | Yes, Yes |
| Life Cycle Status Code | Available to Order |
| part type | Computer Chip Programmer, Computer Chip Programmer |
| Performance Tunes | Yes, Yes |
| Personal Computer and Mac Compatible | Yes, Yes |
| Pods and Mounts Available | No |
| Product Type | Hand Held Programmer, Handheld Tuner |
| SDR Required Flag | N |
| Software Included | Yes, Yes |
| Speedometer | Yes, Yes |
| Sub Category | Engine Service, Engine Service |
| Upgradable | Yes, Yes |
| Video Capable | No |
| Warning | California Proposition 65, California Proposition 65 |
| Warranty Time | 1 |
| Wi-Fi Updates | No, No |
| GTIN | 00810065217417 |
- Installation Instructions
- Installation Instructions
- Video – General Information
- Video – General Information





