Did you specify what year WRX you had? DW doesn't make their own injectors. They modify factory Subaru injectors. You just might have got sent some 06+ dark blues that are slightly different. Have you tried swapping the orings from the old injectors to the new? Put some motor oil or petroleum jelly on the orings them before you install them. I have used both kinds of injectors with no problems. You might have to re-angle the fuel rails slightly as well.



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