The reigning NASCAR Craftsman Truck Series champion from Huntington Beach, California, will pilot a Cup Series entry for Spire Motorsports in alliance with Trackhouse, beginning in 2024.
The 2020 Cup Series champion has been suspended from competing in this weekend's event at Gateway following an on-track retaliatory incident involving Denny Hamlin during Monday's Coke 600.
The 2021 Cup Series champion from Elk Grove, California, led a race-high 138 of 252 over-scheduled laps and prevailed in overtime to win in the series' return to North Wilkesboro Speedway.
The 24-year-old Byron from Charlotte, North Carolina, led 94 of 200 laps en route to his Truck Series victory in six years at the Paper Clip short track.
The Alva, Florida, native is set to reach a significant milestone start in his eventful NASCAR career and for this weekend's Xfinity-Cup doubleheader at Darlington Raceway.