KB is a "dead" company. Why buy from someone who won't (most likely) be in business in the future.
Also, should you choose to upgrade the rear suspension in the future, and were thinking about a PHB, a well designed one like MM will ONLY work with certain types of SFC's. It will NOT work will ALL SFC's.
Ah. The link was to KB's website. It stated that KB hasn't made performance parts since NOV 05 and that if anyone is selling KB products that they aren't real since its been 2 years since they made anything.