The car will be campaigned under the Boost Mobile Kostecki Brothers Racing banner at Bathurst, while further sponsorship is being sought for the Gold Coast and Sandown.
Boost’s backing of KBR adds to its existing title sponsorship of Garry Rogers Motorsport, having moved to the squad for 2019 after two years at Walkinshaw.
Brodie, Jake and Kurt Kostecki have also been named as Boost Mobile Ambassadors, with Triple Eight Super2 driver Kurt playing a key, non-driving role in KBR’s wildcard effort.
"Boost Mobile is proud to continue its support of young driving talent in Australia,” said Boost Mobile CEO Peter Adderton.
“Jake, Brodie and Kurt are not only top quality drivers they have a great story to be told.
“We first met the Kosteckis after Paul Morris introduced us in Adelaide early this year and they mentioned their desire to compete in the Great Race.
“What was impressive was, they not only are great drivers and a great group of guys, they also set up the cars and are a big part of running their own team.
“We hope the fans appreciate our continued support of motorsport in Australia and they all get behind the Kostecki boys as they take on the Mountain come this October.”
All three Kosteckis are currently helping convert one of KBR’s VF Commodores to ZB specification for the three endurance events.
Brothers Kurt and Jake continue their Dunlop Super2 Series efforts at the Century Batteries Ipswich SuperSprint this weekend, while Brodie is on KBR team manager duties.
“We’re really pumped to have Boost Mobile on the journey with Kostecki Brothers Racing for the Bathurst 1000,” said Brodie Kostecki.
“I’ve stopped racing my car in the Dunlops Series so we can spend more time converting the Triple Eight chassis into a ZB Commodore to run it at Bathurst.
“It’s great to have the relationship with Triple Eight that we do.
“Kurt used to work there and his Dunlop Series Commodore is run by them, so while we are building the car ourselves, we’re constantly sharing information and learning from Triple Eight, which really helps our development leading into the endurance races.
“All three of us are working full-time at Kostecki Brothers Racing preparing the car for Bathurst, I’m doing a lot of the suspension work, Kurt is doing a lot of the conversion of the VF to ZB and Jake has been flat out on logistics and helping put this awesome deal together with Boost Mobile.
“Overall it’s a full family affair and we’re tracking along nicely in preparation for the 1000 in October.”
Boost also backed multiple teams at Bathurst in 2017, sponsoring Brad Jones Racing #8 Commodore in addition to the Walkinshaw Racing entries.