Bosch 550cc Fuel Injector

The Bosch 0280158117 is a versatile EV14 fuel injector, known for its 550cc flow rate, making it a significant upgrade for many tuner engines. As an inventor of modern electronic fuel injection systems, Bosch offers reliable performance with features like dual spray cones and ultra-fast solenoids for precise fuel metering. This injector is compatible with a wide range of fuels, including gasoline, methanol, and ethanol (E85), and utilizes a USCAR EV14 electrical connector. Key specifications include a flow rate of 550 cc/min (52 lb/hr) at 43.5 PSI (3 BAR), a 12-ohm resistance, and Viton O-rings for durability. The overall length is 65.5mm, with an o-ring to o-ring measurement of 48.65mm. It is manufactured in the United States and is sold as an aftermarket replacement. While considered a direct fit for some Volkswagen and Audi 1.8T models, other applications may require modifications or adapter harnesses. For instance, Mercedes M113-equipped models require a jumper harness due to different connector styles. Installations on performance-oriented vehicles, such as the R53 MINI with its supercharged 1.6L engine, may necessitate additional modifications like cams, different pulleys, and head work to fully leverage the injector's capacity. An ECU tune is also a necessary requirement for many applications, particularly for Volkswagen and Audi 1.8t owners, to ensure smooth operation and optimal performance with these upgraded injectors.