Collection: Toyota A90 Supra Electronics

The B58 is one of the most tuner-friendly modern engines — and the right electronics unlock it. Shop standalone ECUs, piggyback controllers, gauges, sensors, and wiring for the A90 MK5 Supra from Haltech, ECUMaster, and more. From a safe daily map to full engine management on a built motor, dialed electronics turn bolt-ons into reliable, repeatable power. Shop A90 electronics at J-Spec Garage.