The performance of the Chevrolet Corvette has been pegged back ahead of the start of practice and qualifying for next weekend's Le Mans 24 Hours.
The GTE-Pro Corvette C7.R has been hit with a 0.2mm reduction in the diameter of its engine air-restrictors in the latest Balance of Performance chart published for the French endurance classic.
The move comes after Oliver Gavin topped the times in the official pre-race test at Le Mans earlier this month, when the two Corvettes were also fastest in a straight line.
Corvette Racing's pair of factory entries will go into Le Mans week with 29.5mm restrictors, which compares with the 29.0mm they ran in the race at Le Mans last year.
There have been no other changes to the GTE Pro BoP apart from minor adjustments to the fuel capacities of the cars in order to equalise refuelling time and stint length.
The rule makers, FIA and Le Mans organiser the Automobile Club de l'Ouest, has reserved the right to make further changes after final qualifying on Thursday.