Its the cheapest one I could find! About £360 from Paddocks including vat and postsage.
Serck are a quality make and this one is supposed to fit standard hoses and mounts.
Speaking of which, original hoses tend to de-laminate on the inside which strangles the air flow into the engine. I got a set of silicones from Derby Performance Hose. £72 including a set of really good quality stainless clips - forget Jubilees in this instance.
I would also suggest an EGR delete kit for £28. You can get a blank plate for a few quid, but the full delete kit is a much better option.