Has anyone installed the K&N cold air intake FIPK. K&N claims 11 hp and from all sources the sound alone is worth the effort. But the ballast may get in the way? Anyone attempt this?
dyno sheet from K&N http://www.knfilters.com/dynocharts/57-1001_dyno.pdf.

Here are their products http://www.knfilters.com/search/hp_search.aspx