They subcontract part sales. I ordered Hemi spark plug tubes, ($135.00) from Hot Rod Hardware and they in turn had Mooneyes provide theirs, which are at least a half inch to long as they are intended for use with Mooneyes valve covers. I think both of these company's should know that, and at the very least called and asked if the tubes were for Mooneyes covers or for stock covers. Now I got to send them back, hope they refund the $$$$. I recall when Dean sold out to a Japanese company and there were issues, that's been a while back. At least I think that's the way it went down. Maybe some of you So. Cal. guys can chip in here and give me the lowdown.