^^^^^^ Agreed with the two posts above. I think they are over rated and dont live up to the hype. I went to a dyno day when I was in vic at AVO of all places and made better numbers with my Vf34 equipped car with TMIC than a couple of their cars running the AVO400s and FMIC. I also drove the similar car to mine (Version 6 STI) with autronic, front mount and the AVO400s and wasn't impressed. Unless your turbo was dead and you needed to replace it, I wouldn't consider it an upgrade over a VF35 or 34.