SCT® X4 Tuner arrives pre-loaded with dyno-proven tune files that increase horsepower and torque. Unlock the true performance potential of your vehicle! Applications available for Ford, GM and Chrysler vehicles.
Vehicle Data Overload
With a huge backlit display, the SCT X4 Tuner makes it easy to read real-time vehicle data, view popular sensor data such as EGT, air/fuel ratio, or any other 5 volt source.
Big Power. Small Package.
SCT X4 arrives pre-loaded with dyno-proven tunes to increase horsepower and torque, delivered in a compact, handheld design.
Custom Tunes. Lots of Them.
X4 stores up to 10 custom tune files created by your local SCT Custom Tuning Dealer. So whatever mods you've got, the X4 Tuner can help you get the most out of them.