Collection: 2020-2026 GMC Sierra 3500HD Throttle Improvement

Throttle response controllers that fit every 2020-2026 GMC Sierra 3500HD, gas 6.6L V8 and Duramax 6.6L diesel. Stocked options include Pedal Commander and BD Diesel Throttle Sensitivity Boosters with multiple drive modes, anti-theft, and valet settings via plug-and-play harness.

Will a throttle controller void my GMC powertrain warranty? No. These devices clip into the factory accelerator pedal connector without altering the ECU, leaving no trace once unplugged before a dealer visit.

Verified fitment on every listing, no guesswork at checkout.