O2 Sensor Plug / (12mm Titanium)

These were bought to plug the holes in the Akra Ti pipes that are on my super duke when I removed the O2 sensors. They fit, but you have to retain the scabby looking steel (or brass) adapters (the Ti inserts are 12mm, the actual hole in the pipe is 18mm). Works, but if I had to do it again, would just get the mild or stainless steel 18mm inserts and clean the whole mess up. It's only aesthetic, but one less piece is, for me, desirable simplification. I guess if you think you might replace the O2 sensors one day, it would be good?

As with everything from Rottweiler, they are of course beautifully engineered and a perfect fit.

Great quality plug, easy install, not much to say really.