America has had many a proprietor in the muscle car world, but the Mopar guys have always gone a little above and beyond. There's no mistaking a Dodge Challenger for any other Detroit pony car. Since 1970, they've always been a little bigger, a little louder, and a little crazier than anything else offered. Taking that into account, Holley knows that for Mopar owners, "more" is just enough. That's where we come in.

Amp’d Throttle Sensitivity Booster is easy to install, delivers immediate improvement with pedal response, and will enhance your driving experience. Amp’d offers an incredibly simple solution that generates “seat of the pants power” you won’t find anywhere else.