On March 15, NASCAR issued penalties to five Cup teams – all four Hendrick Motorsports teams and the No. 31 team from Kaulig Racing – for the unapproved modification of hood louvers (vents) which are single-source parts.
All points penalties against Hendrick were rescinded on appeal, but a different three-person panel mostly upheld the penalties against Kaulig. The original 100-point penalty was merely reduced to 75 points on April 5.
