| in the last 2-3 years at least. If they were supposed to be 615cc there would be a bunch of cars out there (including SR20s and KA24s) that would not be running properly. Standard manufacturing tolerances on injectors is +/- 10%. So a 615cc injector can range from 676cc to 554cc, while a 555cc injector can range from 499cc to 610cc. A few sets would have to be flow tested to determine the rated (center) value. Note: flow matching within a set is more critical, and should be within 5%; the Nismo injectors we have tested usually flow match to 1%.
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