Catch can?
When I was running a cone I had a k/n 57i which had a pipe coming off the back of the filter for the isv so no need for separate mini filter ,theres loads on ebayhttp://www.ebay.co.uk/sch/i.html?_trksid=p5197.m570.l1313&_nkw=small+crankcase+breather+filter&_sacat=0&_from=R40