Joe saward? Come on ESPI!
Read the team bosses take on this.
Brawn"It will affect all the teams. These staccato exhausts you hear, I don't think you are going to hear them anymore.
"The teams have all been developing their engine management systems to get the maximum advantage from the exhausts, and the FIA want to push us in a different direction now so there will be changes there.
"I've no idea what will be the outcome there, but it has forced all the teams to have a fresh look at what they are doing in terms of engine strategies."
Christian Horner said: "I think that it is going to have an affect with all teams that have been utilising it.
"That appears to be 90 per cent of the grid, if you look at how many teams are running blown diffusers. It is not something unique to this year, it is something that started last year, so Barcelona will clearly show what effect this will have."
When asked if he thought the rules change had come about as the result of a complaint from a rival team to try and slow Red Bull Racing down, Horner said: "It is inevitable and the unfortunate consequence of success."
This is very real I say.