Dale Earnhardt Jr. is back after his top-5 finish in the NASCAR Xfinity Series race at Homestead for another episode of Dirty Air. After an up-and-down day at the race track, he and co-host Mike Davis had a lot to unpack:

• The short turnaround from practice to qualifying 
• What happened to cause the on-track incident with Josh Berry
• Behind the scenes of the pit road interview with PitBull
• Denny Hamlin and Martin Truex Jr. head to Martinsville below the cut-off line