Speaking to Sky Sports F1 in Japan, Horner commented on the converging F1 field and the importance of having a strong start to the season for the team.
"It's great to bounce back with a one-two finish in Japan, Honda's homeland. A great performance, a great drive from Max, also Checo again putting in a strong performance," he said.
"You can see there is definitely convergence and that's entirely normal when you have stable regulations.
"I'm sure that's only going to converge as the season goes on, so important to get points on the board early and now we head to China for the first Sprint weekend of the year."