Le Castellet, France - Red Bull can expect better performance from its Honda engines at this weekend's French Formula One Grand Prix but Pierre Gasly has played down hopes of a big step up in front of his home crowd.
Honda is introducing a new specification engine, its second upgrade in eight races, at Le Castellet for Gasly and Dutch team-mate Max Verstappen as well as Toro Rosso's Russian Daniil Kvyat.
Kvyat will take a grid penalty for exceeding his season's engine allocation, with Thai team-mate Alexander Albon staying with the old specification to avoid both Toro Rosso drivers taking a drop.
"We have a new, third spec Honda (engine)," Gasly told reporters on Thursday. "The last was more on the reliability side, this one will be a bit more focused on the performance.
"But we don't expect a massive gain from it. I think the overall performance will be slightly increased but it's not like it's going to change massively," added the Frenchman.