The Busch Brothers are adding a new dynamic to their relationship.

When Kurt Busch gets in the car for Friday night’s NASCAR Nationwide race in Texas, where he ran in that series for the first time and won six years ago, it will be his debut driving for younger brother Kyle’s new stock car team.

“It is owner-driver, but it is brother-brother, and it’s unique with me having the upper hand on age,” 33-year-old Kurt Busch said Thursday. “But I respect him for the guts that he has to jump into this endeavor, to be the owner.”

After the first of about 17 Nationwide races driving for his brother, they will be competitors again Saturday night in the Sprint Cup race.

It was at Texas last November when NASCAR barred 26-year-old Kyle Busch from driving for Joe Gibbs in the Cup and Nationwide races. That came after Busch, driving the truck he owned, deliberately wrecked championship contender Ron Hornaday Jr. during a caution in the race that started a tripleheader weekend.