I believe that k10 and k11 have different diameters. K10 is smaller and it also needs to be bolt on filter as the lip in the carb is to small to use jubilee clip.
###### it, well someone will get a bargain £30 plus postage for K11 K&N. No long pipe but these are cheap to pick up.
http://www.performance-filters.co.u...micra-k10k11-10-19932002-5702111_p1528436.htm