You would still have to drill the angled piece on the female end b/c the threads going into it would still be the same size. The defouler pieces you're talking about have the same sized male ends as the threads on the 02 sensor. If you used the one from home depot, you would still have to put one of the defoulers on the female end anyways to keep the tip of the o2 sensor out of the bend.Well i already bought the two sparkplug defoulers from autozone and drilled the one your suppose to. With both of those and the 02 it hits the chassis. So if i get a 90 degree and throw it in the middle of those two i wouldn't have to drill or tap anything right?