Valve replacement
 

So I've been trying to rebuild my engine after a roller rocker slipped out and I've been going with subaru parts for the most part. Apparently exhaust valves are on back order all the way til August so I was wondering if anyone knows of some good aftermarket valves to get instead of having to wait over a month.

The same thing happened to my car a couple of months ago. To my surprise Subaru covered the whole rebuild despite it being a 2013 build and with a patchy service history. Mileage was relatively low at 40K though. Anyhow it was good service.

You're probably across this however coupled with this work I believe there are shims of varying thicknesses that increment by 0.02mm. There are many(!) thicknesses each with their own part number to tailor fit each valve.

I suggest you google "scion frs exhaust valves for sale".

;)