Item: GkTech SR20 Coolant Neck Spacer, which you use as a neat solution for your Coolant Temperature Sensor.
I bought this to fit my Defi Water Temp gauge but i never got round to fitting it before i sold the car, so it remains Brand New.
Gktech Product Description
"Want to install an...
I have been having problems filling up my car and went to root around the cap area and found this (below) inside. It looks damaged and was wedged into the fuel filler neck. Not a clue what it is, anyone know?