Chris Fairless of Hypertech introduces the new plug-in PowerStay system for Fords, Chevys and Chryslers that disables Stop/Start and V-4/V-8 power modes; Spectrum tuning products that optimize a vehicle’s power curve; Spectrum calibration products that maintain speedometer accuracy after gear changes; and the ReAct throttle optimization product that is completely customizable. The company also offers a line of powersports tuning upgrades.
