Kurt Kostecki's move to Triple Eight is helping the other Kosteckis in the 2019 Dunlop Super2 Series, his brother Jake believes.
The Kostecki siblings raced as team-mates between 2016-18, and were joined under the Kostecki Brothers Racing banner last year by cousin Brodie.
All three are hands-on with the operation, even following Kurt's switch to drive with Supercars powerhouse Triple Eight in Super2 this year.
Jake Kostecki is enjoying a breakout campaign sitting fifth in the points after two rounds, having finished his first three seasons 18th, 22nd and 18th.
He believes scaling back to a pair of Commodores is helping KBR.
"Last year we had three cars and it's hard to have all the resources and people to do it," Jake Kostecki told Supercars.com.
"Now we've got two cars with Kurt being in a different team, so it's a bit easier for us to manage two cars, to maximise the best results from both of them.
"At the moment we only have me, Kurt, Brodie and one other person in the workshop full-time, so it's not like we have a whole lot of people that can do the job in the sport, there's very limited resources.
"Since Kurt's car isn't in our team anymore, it's easier for us as a team to focus on two cars; to have just the two and work on them to get the best results possible.
"That's what we've been doing, and I'm focused a lot more, and it has been going good this year."