Anyone with an EVO2 that used vibrant or Z1 or any other gaskets? All my research leads me to 2.5 inch gaskets, but when I look at the GReddy site they sell 60mm and 70mm gaskets for the EVO2. I also read that some EVO2 systems taper so it uses 2 different sized gaskets. I'm not sure if the system tapers for our vehicle. I'm guessing the 2.5 will work, but its not the perfect size. I would measure the piping, but my exhaust is stored away at the moment. Can anyone provide some insight?