1: Put the kart and bike files and the dk-allkart file in your my stuff folder.

2: Open your driver.szs folder and replace the (Driver)dk.brres file with the new one. (Same with the awarddk.brres file, put that in the award.szs file)

3: Open any .szs files that have icons in them (race.szs, menusingle.szs etc) And replace all the Dk's icons with the two in the RAR.

