hi matt.
The filter is a universal from the k&n range.it 220mm long.150mm wide at the bottom and 100mm wide at the top.the filter wil fit to a 76mm pipe wich the fits to inlet pipe wich then fits to turbo.nothing to do with intercooler pipework.heres a link.
http://s1184.photobucket.com/albums/z330/gazzahj/pipe/
Yes i have 3 port boost solenoid.£35.
Thanks,gaz.