Well doing the ebp sensor on the 250 and managed to cross thread/strip out the header adapter hole. How you do that? Fuck if I know. However many hours later, dropped tools on my face, rust in my eye and I can’t get the adapter in. Getting a thread/tap set tomorrow. Don’t care about the shavings because wide open exhaust.

Where the sensor meets the metal tubing I had to soak and chisel out the gunk for 10 minutes eventually pushing it through with a screwdriver the same diameter as the hole. Needless to say I dont think it’s was measuring much.

(That dark spot on the old plug is solid.