Engineers, racers and tuners obsessed with extracting safe, real-world performance from modern ECUs.
JSTuned was founded on a simple idea: modern engines have far more potential than the factory delivers, and that potential should be unlocked responsibly. With over 20 years in motorsport, dyno development and ECU calibration, we've built thousands of files across every major platform — from daily drivers to dedicated track cars.
Every tune we deliver is the result of careful data analysis, conservative safety margins, and a constant feedback loop with the cars we work on. We don't ship a tune we wouldn't run in our own builds.