FIA have given the Astons a smaller air restrictor for Brno and an extra 30 kilos on top of the weight they ran at Silverstone (now 1180 kg). As the restrictor change request is later than the two weeks notice before an event that the FIA have to give, the Aston teams also have the option of running the same restrictor as Silverstone with the car at 1200 kg for Brno only.
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