The Amp'd Throttle Sensitivity Booster has been a huge hit in the marketplace. The Amp'd Throttle Booster for the all-new 2020 GM HD with the 6.6 L5P diesel motor is now available. Amp'd is easy to install, delivers immediate improvement with pedal response, and will enhance your driving experience. The throttle booster is an incredibly simple solution that generates 'seat of the pants power' you won't find anywhere else.