I ended up finding a stock blaster pipe in off of my junk. The two biggest problems I found with the 760 pipe from what I remember was the bolt hole in the manifold are bigger on the 760 so the bolts that fit your head wouldn’t locate that pipe well without some bushing in the bolt holes. The other thing was that the 760 pipe has a rear outlet and I didn’t have a hose to go from the back of the motor around to my water box.what pipe did you end up going with? I am keeping my eye out for a factory waveblaster mod pipe to put in a wr3. was hoping to find someone else who has tried it