Where can i take one from on a MY03 Sti. the original one for the temp gauge can't be used as it would mean having no temp gauge on the car. Wrong voltage or something ?

Will I have to use the top hose t piece method ?

Thanks
Jas

 

Jason,

I imagine your STi won't be too different to my MY98 Classic. See here.

 

I spoke with a specialist today and they said the best thing to do was tap a hole into the expansion chamber bottle and put it in there.
Cheers