As used on our turbo systems. A custom-formed silicone hose to mate up to the throttle body and the IAC inlet. It includes a 1.375" outlet for a bypass or blowoff valve and a 3/8 NPT threaded port for a temp sensor. The stainless steel pipe allows you to connect it to your intercooler outlet pipe and will not rust internally like mild steel pipes can. 2.5" inlet.
For the 1994-94 throttle body. If you have done a 1.8 swap on your early car, you'll need to match this pipe to the throttle body you used.