Banks Power Derringer High Output Tuner with iDash Pro (67106)

A tuner is a small box that plugs into the diagnostic port under your dash and changes how the engine computer manages fuel and boost, so the truck makes more power without swapping any physical parts. This "High Output" version is Banks step-up kit for the newer-body HD trucks and comes with the iDash Pro screen, which shows live gauges for things like exhaust temperature and boost so you can watch the engine while you use the added power.

why this one — This is the tuner Banks builds specifically for the 2020-2022 Sierra 2500HD/3500HD, which sits on GMs all-new HD body redesigned for 2020 - a different, newer truck than the 2017-2019 version even though both use the L5P engine. Banks own page is explicit that this kit stops at 2022 because the 2023 truck needs the higher-end iDash Data Pro display to talk to GMs newer "Global B" electrical architecture, so this listing does not claim 2023 fitment even though the vehicle generation in our system runs through 2023. Six power levels let you back it off while towing and turn it up when the truck is empty. No reflash, no trace left if removed, and no CARB EO number is shown so no street-legal claim is made here.