Superchips Flashpaq with ECM Unlock for 2020-2023 GM 6.6L L8T

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!

Superchips Flashpaq with ECM Unlock for 2020-2023 GM 6.6L L8T

This Part Fits:

Year	Make	Model	Submodel	Notes
2020	Chevrolet	Silverado 2500 HD	Custom
2021	Chevrolet	Silverado 2500 HD	Custom
2022	Chevrolet	Silverado 2500 HD	Custom
2023	Chevrolet	Silverado 2500 HD	Custom
2020	Chevrolet	Silverado 2500 HD	High Country
2021	Chevrolet	Silverado 2500 HD	High Country
2022	Chevrolet	Silverado 2500 HD	High Country
2023	Chevrolet	Silverado 2500 HD	High Country
2020	Chevrolet	Silverado 2500 HD	LT
2021	Chevrolet	Silverado 2500 HD	LT
2022	Chevrolet	Silverado 2500 HD	LT
2023	Chevrolet	Silverado 2500 HD	LT
2020	Chevrolet	Silverado 2500 HD	LTZ
2021	Chevrolet	Silverado 2500 HD	LTZ
2022	Chevrolet	Silverado 2500 HD	LTZ
2023	Chevrolet	Silverado 2500 HD	LTZ
2020	Chevrolet	Silverado 2500 HD	WT
2021	Chevrolet	Silverado 2500 HD	WT
2022	Chevrolet	Silverado 2500 HD	WT
2023	Chevrolet	Silverado 2500 HD	WT
2020	Chevrolet	Silverado 3500 HD	Base
2021	Chevrolet	Silverado 3500 HD	Base
2022	Chevrolet	Silverado 3500 HD	Base
2023	Chevrolet	Silverado 3500 HD	Base
2020	Chevrolet	Silverado 3500 HD	High Country
2021	Chevrolet	Silverado 3500 HD	High Country
2022	Chevrolet	Silverado 3500 HD	High Country
2023	Chevrolet	Silverado 3500 HD	High Country
2020	Chevrolet	Silverado 3500 HD	LT
2021	Chevrolet	Silverado 3500 HD	LT
2022	Chevrolet	Silverado 3500 HD	LT
2023	Chevrolet	Silverado 3500 HD	LT
2020	Chevrolet	Silverado 3500 HD	LTZ
2021	Chevrolet	Silverado 3500 HD	LTZ
2022	Chevrolet	Silverado 3500 HD	LTZ
2023	Chevrolet	Silverado 3500 HD	LTZ
2020	Chevrolet	Silverado 3500 HD	WT
2021	Chevrolet	Silverado 3500 HD	WT
2022	Chevrolet	Silverado 3500 HD	WT
2023	Chevrolet	Silverado 3500 HD	WT
2020	GMC	Sierra 2500 HD	AT4
2021	GMC	Sierra 2500 HD	AT4
2022	GMC	Sierra 2500 HD	AT4
2023	GMC	Sierra 2500 HD	AT4
2020	GMC	Sierra 2500 HD	Base
2021	GMC	Sierra 2500 HD	Base
2020	GMC	Sierra 2500 HD	Denali
2021	GMC	Sierra 2500 HD	Denali
2022	GMC	Sierra 2500 HD	Denali
2023	GMC	Sierra 2500 HD	Denali
2022	GMC	Sierra 2500 HD	Pro
2023	GMC	Sierra 2500 HD	Pro
2020	GMC	Sierra 2500 HD	SLE
2021	GMC	Sierra 2500 HD	SLE
2022	GMC	Sierra 2500 HD	SLE
2023	GMC	Sierra 2500 HD	SLE
2020	GMC	Sierra 2500 HD	SLT
2021	GMC	Sierra 2500 HD	SLT
2022	GMC	Sierra 2500 HD	SLT
2023	GMC	Sierra 2500 HD	SLT
2020	GMC	Sierra 3500 HD	AT4
2021	GMC	Sierra 3500 HD	AT4
2022	GMC	Sierra 3500 HD	AT4
2023	GMC	Sierra 3500 HD	AT4
2020	GMC	Sierra 3500 HD	Base
2021	GMC	Sierra 3500 HD	Base
2020	GMC	Sierra 3500 HD	Denali
2021	GMC	Sierra 3500 HD	Denali
2022	GMC	Sierra 3500 HD	Denali
2023	GMC	Sierra 3500 HD	Denali
2022	GMC	Sierra 3500 HD	Pro
2023	GMC	Sierra 3500 HD	Pro
2020	GMC	Sierra 3500 HD	SLE
2021	GMC	Sierra 3500 HD	SLE
2022	GMC	Sierra 3500 HD	SLE
2023	GMC	Sierra 3500 HD	SLE
2020	GMC	Sierra 3500 HD	SLT
2021	GMC	Sierra 3500 HD	SLT
2022	GMC	Sierra 3500 HD	SLT
2023	GMC	Sierra 3500 HD	SLT