When going to aftermarket engine management, it's a good idea to get large enough fuel injectors to support the amount of power you plan to make in the future to avoid repeating the purchase. Also running larger injectors than necessary will decrease the duty cycle the injectors will have to be used at potentially extending their life.
Select your injector size from the list below. Power ratings are for 4 injectors at 100% duty cycle with a manual transmission. Injectors are priced each. These injectors require the use of a top feed fuel rail and will not work with the stock fuel rail.
These are 14mm top and bottom O-ring sizes to work with Wolfkatz Top Feed Fuel rails. 11mm top ring (only) available as an separate option.
Injector connectors are not included. You have to buy those separately.