2015-2019 GMC Sierra 3500HD Tuners Modules Monitors

Every tuner, inline module, and monitor here fits the 2014-2018 GMC Sierra 3500HD, including 6.6L Duramax LML/L5P and 6.0L Vortec V8 trucks. Stocked brands include Edge Products CTS3 monitors, Banks Power Derringer modules, and Bully Dog diagnostic tuners -- all 50-state CARB-legal.

Will these tuners void my powertrain warranty? No. We only stock CARB-compliant, emissions-legal calibrations from Edge, Banks, and Bully Dog -- no delete tunes, no limp-mode chips, no DPF bypasses that trigger warranty denial.

Verified fitment by engine and ECM calibration -- no guesswork at checkout.

No products found
Use fewer filters or remove all