STILLEN supercharger tune Hood GM's 2020 HD 2500 received

GM's 2020 HD 2500 received a major redesign

resulting in a colder intake charge and increased power

You can use the Tuning: Pro App which also controls and resets all calibrations based on what you input in the application

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STILLEN supercharger tune Hood GM's 2020 HD 2500 receivedSTILLEN's email tuning service option for all STILLEN superchargers. This tune is only for STILLEN's supercharger systems and is only available in a CARB tested status. STILLEN will not provide custom tuning or support the removal of any check engine lights, removal of emission control devices or any other illegal activity. STILLEN does not support the removal of factory emissions systems. STILLEN does not offer support for air to air conversion kits,