Shelby GT500 Mustang Tune Package w/RTD4

2007–2014 & 2020+ Shelby GT500 Tune Package Take your Shelby GT500 to the next level with a custom Shoemaker Performance calibration built specifically around your vehicle, modifications, fuel, and performance goals. Whether your GT500 has a few basic bolt-ons or is a high-horsepower build with upgraded fueling, alternative fuel, or extensive engine modifications, we offer two tuning levels to match your combination. Level 1 — Basic Bolt-On GT500 Level 1 is designed for 2007–2014 and 2020+ Shelby GT500s with stock or basic bolt-on combinations. This level is intended for straightforward setups with common performance modifications such as cold air intakes, exhaust modifications, throttle bodies, basic pulley/boost changes, and other standard bolt-ons. Your calibration is custom developed around your specific vehicle and modifications to optimize power, throttle response, drivability, and overall performance. Level 2 — Advanced / High-Horsepower GT500 Level 2 covers everything beyond a basic Level 1 combination and is intended for extensively modified and high-horsepower GT500 builds. Level 2 tuning covers vehicles with upgraded return-style fuel systems, aftermarket injectors, E85 or Race Gas, larger or aftermarket superchargers, aggressive pulley/boost combinations, built engines, and other extensive performance modifications. Choosing Level 2 allows for the additional calibration work and revisions necessary to maximize performance around your specific high-performance combination. What’s Included HP Tuners RTD4 Required HP Tuners Credits Custom Shoemaker Performance Calibration 6 Months of Tuning Support Not sure which level your GT500 requires? Send us your complete modification list before ordering, and we’ll make sure you select the correct tuning level.