Wow, I bet your one of those people that buys the "best" of everything. I'm sorry my pockets aren't as deep as yours. I go for the parts that make my car work, not shiney. If iI wanted flash I would have purchased a Corvette. Btw my rubber plug that expands as you turn it seals fine, hell you think they leak? Better tell all the people that use them in engine blocks for that coolant.....