I too never had a problem with the type-S. Im only running a crushed 1g bov now because of the new intercooler piping. This is the first ive heard of the Type-S "leaking like there is no tomorrow" Back on topic, i dont see the need to change out the BOV on the Evo right away. Sure it looks just like the stock 2g bov, but doesnt the evo run like 19psi stock? It may even be able to hold more than that.