How do I install the EGT probe that came with my Exhaust Gas Temperature Gauge?

You are going to have to drill and tap your exhaust manifold. The drill bit size for the EGT probe is a size R. After you drill and tap the hole to 1/8-27 NPT, ensure the tip of the probe is at the halfway point inside the manifold and then tighten the ferrule. Check out our Youtube Channel for installation videos.