The second (bottom) product on this page is the one:
http://www.mines-wave.com/english/CA.../AIR_SCOOP.htm
A quick google search of 'mine's air scoop' shows there are a few sources shipping in the US, but looks like about $1K, which imho is ridiculous for the part. It's basically a pretty liner for two holes you cut in your bumper. I'm sure someone local could custom fabricate a clone far cheaper.