Kurt Busch driving the PWR Performance Products cooled Chevrolet for Stewart Haas Racing took the lead with 11 laps remaining in the 500 lap STP 500 NASCAR Sprint Cup Series race at Martinsville Speedway and held off Hendrick Motorsports drivers Jimmie Johnson and Dale Earnhardt Jnr. to take the chequered flag.
Johnson dominated the race, leading 296 laps. Although Johnson was a mainstay up front, there was a record 33 lead changes in the race.

The top 20 cars used PWR Performance Products.