I have a whole rail full of 4. $30.00 each, but I cannot guarantee they are all OK. I have an engine with a set of 4 in the intake manifold which are all known good, but I just agreed to sell the engine complete to another buyer, He has a car with 4 known good injectors on a bad engine. If you want, I can put you in contact with the buyer of the engine and maybe he will sell you a known good injector. When he receives this engine he will have 8 known good injectors.