Red Bull to stick with double diffuser
The concept's debut on the RB5 at Monaco last weekend was later than many of the team's rivals, because it required a substantial reworking of the unique characteristics at the rear of the car.
And after beginning to look at match at recent races for the dominant Brawns without the diffuser, Sebastian Vettel and Mark Webber were slightly off the boil on the Principality's streets.
Moreover, Vettel dropped dramatically off the pace with ruined soft tires at the beginning of Sunday's race, leading to his crash and retirement at Ste Devote.
Team boss Christian Horner, however, said Red Bull had always predicted that Monaco would not suit the high-speed aerodynamic characteristics of the Adrian Newey-penned car.
And he said it is wrong to blame the new diffuser.
"We can see that it has put aero performance on the car," he insisted.
"It will be interesting when we go to Istanbul and Silverstone. Theoretically they are tracks that should come to the characteristics of our car," added Horner.