egr size help

Hiya

after much searchin im wondering if anyone can tell me the diamiter of the egr on a 1.3 gf mk1 golf (another mot fault) Mine appears to have snapped off and flown away leaveing me with the manifold and a clean brake would measure the remaining hole but am now home and miles away from the car (in storage) cheers  

Not sure a Mk1 Golf has an EGR.....what do you think it stands for?

exhaust gas re-cricic system? lol used the search button to identify it ops:   to describe it its a bit of flexi pipe the runs up the back of my engine from my down pipe 2 inch before the c clamp for the center section. help lol