I have not read a good review on the "FCP Groton" stuff. They don't last long... Check bimmerforums.com -> http://forums.bimmerforums.com/forum...ght=FCP+Groton
When I changed mine, I only wanted "Made in Germany" and I picked up Lemforder parts.
If you think about what you parts do, you don't want crap. You also don't want to have to do it again in the same year.
My 2 cents.