Red Bull Racing has switched brake manufacturer for the Chinese Grand Prix, after suffering severe problems in the previous race in Malaysia.
Daniil Kvyat and Daniel Ricciardo limped home in ninth and tenth places at Sepang after being forced to nurse overheating brakes to the end of the race.
Red Bull had changed its brake supplier for its 2015 car to Carbon Industrie, but has now reverted to its 2014 supplier, Brembo.
"What is older is not necessarily worse," said Ricciardo on the subject, having complained in Malaysia that he was "a bit of a passenger".
Kvyat added: "This is a logical choice, since it worked for us last year. The concept of the brakes is quite similar."
Battling to regain old form
Red Bull's brake switch is one part of a 'back to basics' campaign, in an attempt to rediscover the secret to its former speed.
"In Malaysia," said Kvyat, "we just were not fast enough, neither on the straights nor in the corners. We need more power, more grip and better cooling."
Kvyat has been frustrated in his move from Toro Rosso, who outpaced the 'senior' Red Bull team at Sepang.
"I'm not surprised that Toro Rosso is achieving these results," he added. "It is us who are not where we should be.
"At Toro Rosso there are many smart people who have built a good car. Now it's up to us to fight back."