Now for the some cool stuff, or not, can't decide.
I took my valve heads to an engineering workshop where they told me all four my valves needs to be replaced
, that hurts allot. I did some research and it turned out that the custom stainless steel valves the engineering shop makes would cost the same as ordering new ones online, and the BMW dealer was just too expensive. So I thought the stainless valves would be a nice thing to do.
If you cant tell that the outside fins are ceramic coated, its a good thing, trying to keep the look original. The coating is a ceramic heat dissipating one and helps with increase heat transfer and corrosion.