SuperchipsAuthorized Reseller

Superchips Flashpaq 6.6L L8T Gas trucks with Unlock for Chevrolet and GMC

Part # 2866-F

  • Supports 2020-2023 Silverado/Sierra 2500/3500 6.6 L8T
  • Up to 28 RWHP/50 RWTQ over stock on premium fuel
  • 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

Description

Unlock 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!

Specifications

5 Volt Data Logging InputsNo
50 State LegalNo
AC AdapterNo
Accepts Custom Tunes From CMRNo
Body MaterialABS
CARB (California) CompliantNo
Case IncludedNo
Color DisplayYes
Color Touch Screen DisplayNo
Custom TuningNo
Data LoggingYes
Erases Fault CodeYes
Fuel TypeGasoline
Grade TypePerformance
In Cab MonitoringNo
Instruction Manual IncludedYes
Performance TunesYes
Personal Computer and Mac CompatibleYes
Pods and Mounts AvailableNo
Software IncludedYes
SpeedometerYes
UpgradableYes
Video CapableNo
Wi-Fi UpdatesNo
UPC / GTIN00810065217417
WarrantyManufacturer's 1 Year Warranty

Fits these vehicles

YearMakeModelSubmodelEngine
2020 - 2023ChevroletSilverado 2500 HDCustom, High Country, LT, LTZ, WT6.6L V8
2020 - 2023ChevroletSilverado 3500 HDBase, High Country, LT, LTZ, WT6.6L V8
2020 - 2021GMCSierra 2500 HDAT4, Base, Denali, SLE, SLT6.6L V8
2022 - 2023GMCSierra 2500 HDAT4, Denali, Pro, SLE, SLT6.6L V8
2020 - 2021GMCSierra 3500 HDAT4, Base, Denali, SLE, SLT6.6L V8
2022 - 2023GMCSierra 3500 HDAT4, Denali, Pro, SLE, SLT6.6L V8