Try this link.MK'sBullitt said:If your idle takes longer to drop during shifts, it's something that other Bullitt owners in the past have mentioned as well. There's a member of IMBOC.. cant remember his name... who about 2 years ago was selling a little plate that bolts right behind the IAC. Takes about 10 minutes to install. It's sort of like a restrictor, but it solves the problem.