The Fuel Injection Systems Repair Division at German-Gulf Enterprises Ltd. is dedicated to providing the highest quality professional ultrasonic fuel injector cleaning and flow testing services for most automotive, truck, marine and industrial engine fuel injectors. German Gulf Enterprises Ltd. is committed towards refurbishing your fuel injectors with its computerized ultrasonic cleaning and flow testing service that will give you peace of mind where ever you go, and you can be absolutely certain if your injectors are good or bad before reinstalling them on your engine.