I'll be replacing the tuning fork control arm and tie rods to to complete the front suspension replacement on my 1999 Porsche Boxster. The coffin control arms that I replaced earlier were made by Sidem. So I tried to find tuning forks made by them, but could not, I used Meyle instead and they seem to work just fine together. The tie rods were manufactured by TRW. I ordered it all parts from autohausaz.com as they had the best price for the quality parts.