The Bosch valves are the best "stock replacement" valve you can get for cheap new. It doesn't have the bling factor but it's a solid option that you won't have to worry about cheap build quality like you do with a lot of the imitation/knock off BOVs out there. That's not to say you might find a deal on a good aftermarket one, but to get a decent NEW aftermarket one I wouldn't plan on spending less than a couple hundred dollars.