FMIC size

[pasty1]

thinking of buying a FMIC kit and need to know what size is best to fit.
and what bore intercooler pipes. I'm looking at 2.25 inch rather than 2.5 inch??
Here's one I've been looking into
http://www.ebay.co.uk/itm/2-25-UNIVERSA ... 1223wt_947

is the depth of that to small? 140mm looks small.
and this one also looking good as its slightly deeper.

http://www.ebay.co.uk/itm/UNIVERSAL-INT ... 1251wt_947

is this like the kits that you guys have used??

cheers.