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The Flashcal for Truck and Amp'd 2.0 Throttle Sensitivity Booster kit for GM trucks offers quick, meaningful, and market-leading features that consumers love. Adjust for aftermarket tire and gear adjustments with Flashcal and then wake up that laggy gas pedal feeling with the Amp'd 2.0 Throttle Booster together in one kit. Enjoy a seamless package for your GM gas truck that creates extraordinary value and savings. Install is easy, the price is right, and the Flashcal + Amp'd 2.0 together in one package will answer the call for those seeking the most common upgrade solutions for your Chevy, GMC, or Cadillac.