SCT’s handheld automotive performance products increase your vehicle’s horsepower, torque and throttle response by optimizing your vehicles PCM (engine management computer). Instead of optimizing your vehicle’s PCM (engine management computer) for performance, SCT’s Fuel Economy products optimize your vehicle’s PCM for maximum fuel economy. High horsepower add-on’s such as superchargers and nitrous oxide often require “custom tuning” in order to optimize your vehicle’s PCM for such a large increase in horsepower and torque. SCT offers custom tunable products specifically designed for these types of applications and has a network of custom tuning dealers worldwide that can custom tune your vehicle for these types of performance modifications. SCT Pre-Loaded Tunes are designed for stock or lightly modified vehicles (cold air kits, exhaust systems, gear ratio changes etc.) Custom Tunes are created by one of SCT’s custom tuning dealers worldwide and are specifically designed for your vehicle and its modifications. SCT’s Custom Tuning dealers have complete control over your vehicles PCM using SCT’s Advantage III Custom Tuning software and will optimize your vehicles performance for simple add-ons such as cold air kits or for high horsepower modifications such as superchargers, turbo kits or nitrous oxide.