I have been planning this for ages had the parts for a while but not got round to doing the job, thought i'd share it so that others could do it, or at least know what size the parts are if you want to do something different
Parts:-
APEXI cone filter (from another member on here)
APEXI Neck adapter (off ebay, i have one going spare as i got 2)
3" Silicone hose section (off ebay)
4 M6 x 20mm socket caps
2 3"-5" jubilee clips (have loads of these in my garage as i bought a job lot for a previous car project on the MR2)
home made cardboard gasket just to help with sealing beween parts
here are the parts all assembled
you can see the difference in cones with the typhoon and apexi side by side
and here they are fitted
the reason i did this is that the apexi is a dry filter instead of oiled, which i prefer, and the apexi gives possibly some of the best filtration and breathability on the market. i know at the end of the day this will make very little difference to overall power but i wanted to be different and for piece of mind this is what i'd prefer to run