I've been replacing all of my 11 year old fuel hoses with braided cover hoses and decided to do the flow guide valve vapor hoses for a consistent appearance. My valve cover breather hose was already a OE braided unit but I gave it quick inspection. Uh Oh - big crack at one end, time to replace it as well. A visit to MSA showed me a repro unit for (choke!) $90! 😲 So it was back to Belmetric for possible options. The valve cover fitting is 16mm in diameter but Belmetric only has 14mm and 17mm hoses. The breather hose is about 14" so I ordered two feet of the 17mm hose at the most attractive price of $7.15/ft. (today it is $8.01). At 1mm oversize, obviously it is an easy fit but the OE circular spring clamps hold it securely in place on the valve cover and air filter box.

All of the hoses at Belmetric are from Germany and are typically marked so on the hose. If you don't want the word Germany on your Japanese car, the markings can easily be removed with a vigorous rubbing with mineral spirits.

I really like the feel of $75 still in my pocket! 😁

https://belmetric.com/m17x21-braided-continental-hose-rh17-n203701/

Looks much better than the hockey tape repair on my 52 year old breather hose.  The hose itself is not to bad, just the fabric is failing on that end.