Bosch 330cc injectors. Name : Bosch 330cc Part number : 0280158191 / 0280 158 191 / Bosch -191 Package : 1x Connector : USCAR Length : 33.60mm - EV 14C (Compact) Nozzle type : Standard Top O-ring : 14mm Viton Bottom O-ring : 14mm Viton Body diameter : 16mm Coil resistance : 12 ohm   Flow matching These injectors are delivered directly with factory tolerances unless you choose to have us flow-match them with much tighter tolerances than factory. We always recommend selecting flow matching before delivery unless you are certain that the factory tolerances are acceptable. You can either run them un-matched with wider tolerances, match them yourself, or compensate for the possible flow differences during ECU tuning. The factory variation always differs slightly. When you choose to have us match the injectors, this is done using our top-tier equipment! Documentation and certification from us are included when you select this option.