Originally Posted by Rod-Tarry

Wow!!
Just got back from Marks first reaction to the 9180 its remarkably small. Next to the GTX4202 its an inch or so less diameter. Its probably around a gt40 in size. Its an impressive bit of kit though with a built in dump valve so i will run 2 dump valves. The most remarkable thing is its weight about half of the GTX42 I guess.