| 2010 K&N Horsepower Challenge Overview Eight of the best NHRA Pro Stock Drivers arrived at Summit Motorsports Park in Norwalk, Ohio, for the 2010 K&N Horsepower Challenge Sweepstakes. Eight lucky fans had a chance to win a new Harley-Davidson® Street Bob® motorcycle. Watch the battle between these top racers as they battle to win the K&N Horsepower Challenge Championship. |
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