Eight randomly selected fans who enter the K&N Horsepower Challenge Sweepstakes online at KNFilters.com, will be selected to join the action on June 25th at Summit Motorsports Park in Norwalk, Ohio.Of those eight, one particularly lucky fan will win a brand new 2011 Ford Explorer XLT. The eight finalists will attend the K&N Horsepower Challenge, where they will be paired randomly with a racer. If their racer wins the NHRA K&N Horsepower Challenge, they win the Explorer. That's all there is to it.
2011 NHRA K&N Horsepower Challenge Sweepstakes