Coy Miller, Chris Wise and Chris Mendola each have air/liquid ICs. Each are custom and done a different way. Coy also has an air/air front mount with the same core MP uses in their kit. All are mounted where the stock IC was.
George Davenport is getting a lightning style air/liquid IC as part of his Whipple blower conversion. Since it requires a custom intake manifold and doesn't work with a top exit M90, his will be the only one around.
David