New performance fueling upgrade kit for all R850/1100 bikes except the R1100S model. Includes the AF-XiED O2 sensor manipulator, a new O2 sensor and a set of upgraded R1200 12-hole plug and play Bosch fuel injectors. Richen your fuel mixture with the AF-XiED, replace that older higher mileage slugish O2 sensor and upgrade your old tied injectors with modern 12-hole Bosch injectors withbetter atomization and quicker response time. Normally these items would cost you $450 separately - package deal at $395! Your old R1100 will feel like a new bike with this kit!