@threedogs, I had one similar to this fitted to my GU CRD. Did work well, good for 200hp, but do not like the way the inlet flow is directed at 90° to the centre of the filter side face. Restriction point here and crap collects at this concentration point. Guess the box you are looking at is direct bolt in and has 3" inlet / outlet.
Other options available, do you have stock induction MAF/pipework from airbox to turbo and guess you have 3" Safari snorkel? Can make other suggestion but up to you mate.
John