<p>Ferrari boss Stefano Domenicali, one of the last to sign, confirmed that a deal had finally been concluded to return to pre-Silverstone set-ups and strategies. "Let's put it simply," added Renault team principal Eric Boullier: "The debate is closed, please don't reopen it. It took us a lot of energy to close it down."<br /><br />The governing International Automobile Federation (FIA) had said on Saturday it was prepared to abandon the second phase of a clampdown concerning exhaust gases blown through the rear of the cars if the teams were in unanimous agreement. The FIA had moved last month to limit the use of engine electronics to ensure teams did not gain an aerodynamic advantage by using systems that allow exhaust gases to flow constantly through the rear diffuser even when a driver is off the throttle.<br /></p>
<p>Ferrari boss Stefano Domenicali, one of the last to sign, confirmed that a deal had finally been concluded to return to pre-Silverstone set-ups and strategies. "Let's put it simply," added Renault team principal Eric Boullier: "The debate is closed, please don't reopen it. It took us a lot of energy to close it down."<br /><br />The governing International Automobile Federation (FIA) had said on Saturday it was prepared to abandon the second phase of a clampdown concerning exhaust gases blown through the rear of the cars if the teams were in unanimous agreement. The FIA had moved last month to limit the use of engine electronics to ensure teams did not gain an aerodynamic advantage by using systems that allow exhaust gases to flow constantly through the rear diffuser even when a driver is off the throttle.<br /></p>