I had one of these fitted as its a requirement if you opt for the GIAC Extreme map (Revo stage 2+ equivalent), give Steve at Statller (sheffield) a call, he is a GIAC dealer and always has them in stock, more importantly he knows his stuff and is a great Guy to deal with - 0114 279 8195.
The intake performs and sounds very much like the Evoms but has a larger diameter intake to the Turbo.
Tell Junior (Steve) i said Hi.