The No. 18 car was found to be in violation of Sections 12-1 (actions detrimental to stock car racing); 12-4-J (any determination by NASCAR officials that race equipment used in the event does not conform to NASCAR rules); and 20-12.8.1B (body height requirements – car failed to meet the minimum front car heights) of the 2011 NASCAR rule book.

As a result, crew chief Dave Rogers has been fined $25,000, while owner Joe Gibbs and driver Kyle Busch have been penalized with the loss of six championship owner and six championship driver points, respectively.