The Electronic Fuel Regulator by ATS Diesel allows higher boost pressures in your vehicle while maintaining the factory fuel pressures. This is essential when doing any turbo modifications. When the turbo produces boost pressure over stock, the engine will reduce fuel. The Electronic Fuel Regulator will allow you to get extra boost out of your turbo while maintaining factory fueling levels. If you have any questions about the electronic fuel regulator boost fooler kits reach out to one of our experienced representatives and we will help you make a more informative decision.