The changes come as a result of NASCAR’s ongoing collection of on-track data with the car as well as from a study of the vicious wreck involving Kyle Larson and Ryan Preece in last month’s race at Talladega, Ala.
The updates, which center around center section and front clips of the cars, will go into effect ahead of the July race at Atlanta Motor Speedway. NASCAR will assist teams in handling the cost of the changes.
