Billy's bought quite a few things from KMJ Performance and has always been happy with his purchases. Keep in mind though that I've had several sets of other fabricated valve covers show up here for customization and most had pinholes (or worse) in the welding. If you buy any, hold them to the light and inspect them well before you install 'em. :-D (I don't recall if any were KMJ's valve covers offhand.)