NASCAR has issued a Degree 1 penalty to Stewart Haas’s No.00 entry for a technical infraction throughout final weekend’s Xfinity Sequence spherical at Michigan.

The violation pertains to Sections 14.3.3 C & H of the rules, which dictate that splitters have to be utilized in precisely the identical specification as provided by the producer.  The automobile’s splitter was confiscated by the sequence through the opening day inspection, and brought to NASCAR’s R&D heart for additional analysis.

Crew chief Jonathan Toney has been fined $25,000, and the crew and driver Cole Custer have been docked 20 and 5 playoff factors respectively.

Custer was categorised 16^th at Michigan, and has certified for the Xfinity Sequence playoffs via victories at Portland and Chicago.