Well, I just pulled the TB off of my 96' D16Y8, and the metal feels really thin. I took a look at another D16Y8 TB, and it had a much smaller inside diameter... I also compared it to my brother's B16A TB, and the inside diameter of the opening side is the same! Do you guys think It has been bored out at all? On the throttle plate inside it says "96-97 Civic si/ex" So maybe it it a used performance T-BodY? Has anyone heard of anything like this?