Well basically the guy who did these ones,( dont want to name anyone except he is from towommba area) didnt do a very good job of them plus its a bit ruthless to do them.The spray pattern is crap,like a turning on a garden house and one of the pintels in the number 4 injector was broken from his bad doing and caused number 4 piston to basically crack the length of it in two.All the fuel was washing oil off the bore,hence causing damage.Spray pattern is important.IM not sure on Rb25 injectors but these were on SR20det ones.