Though the series primarily sanctions races in the United States, the series has also traveled to Australia in 1988 and Japan from 1996 to 1998 for exhibition races. The series became the first series to sanction a championship race outside the United States in 1999, when the final race was held at Twin Ring Motegi. In 2003, the Busch North Series was consolidated into the series forming the modern day series. For the 2008 season, Camping World bought naming rights of the series, renaming it the Camping World West Series. Two years later, K&N Engineering, Inc. replaced Camping World as the title sponsor.