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It seems everyone has or is jumping on the Bosch EV14 bandwagon and things are getting better for us in the aftermarket . These first turned up in OE apps because earlier injector styles were struggling to meet emissions and consumption targets set by various regulators . Not long after various mobs found out that if you removed the multi holed diffuser plate off the tip then they flowed a whole heap more . Result , cheap high flow injectors based on more modern cores than the older EV1 and EV6 types . The more modern core had lighter faster reacting parts and were electrically better for aftermarket engine management . You got all that reasonably easily but you also get a spray pattern that's supposed to be narrow and the droplets larger than Bosh would have liked it . Currently Bosch are making higher flowing versions of the EV14 and these all have diffuser plates similar to the OE ones . They are supposed to atomise the fuel far better than the de capped ones and they can also have multiple sprays and various cone angle sprays as well , it all depends on how they have the holes set up in that diffuser plate . Gotta run back later .