The X-SonicClean BT from Launch Tech USA offers a solution to evaulating injector performance by allowing technicians to see the spray on each injector, verifying equal volume, spray pattern and leakdown. If a bad injector is found, place it in the Ultrasonic Cleaner or reverse flush it. The X-SonicClean BT works as an off-car piece of equipment, and also includes a computerized drive cycle for performance evaluation of the injectors.