What size in standard exhaust?

[ThomasWatson]

I want to purchase one of those egt clamp things just wondering what size is the standard exhaust on a gu zd30

[threedogs]

You are better off welding in a bung IMO

[ThomasWatson]

I don't want to weld a bung as I'm replacing exhaust when I have the money and because I don't own a welder

[threedogs]

Work on a hose clamp to suit 50mm to 60mm and you should be right