Lamborghini has stated that all five of its customer Huracan GT3s that took part in last month’s Rolex 24 at Daytona complied with IMSA’s technical regulations and respected the sanctioning body’s Balance of Performance process.

The Italian manufacturer and its GT Daytona customer teams were penalized on Monday for what IMSA has deemed to be a performance advantage in the WeatherTech SportsCar Championship season-opener, which saw the V10-powered GT3 machines noticeably quicker than the competition in the race.

It has resulted in all Huracan GT3s behind given a post-race penalty of five minutes, as well as Lamborghini losing all championship points from the opening round, as well as facing a $25,000 fine.

According to the manufacturer, all five cars passed pre and post-race technical inspection, with Lamborghini having worked with IMSA to achieve the car’s BoP with dyno testing prior to the Roar Before the Rolex 24, as well as providing data.

Giorgio Sanna, Head of Lamborghini Motorsport, has called for IMSA to comply closer to the FIA’s BoP process, which has been recognized as the worldwide standard for GT3 cars.

“Lamborghini Squadra Corse has always collaborated with IMSA with maximum transparency, in order to achieve a right BoP,” Sanna said in a statement.

“We are and will be available for IMSA technicians to achieve the performance required by IMSA. However, we hope more FIA components and technical parameters will be used in the future to ensure a right BoP.”

It’s understood the issue at Daytona stemmed from the type of air restrictor used on the cars, which allegedly gave the Huracan GT3s a performance advantage in the race. The cars had passed pre and post-race tech with its allocated air restrictor.

Six Huracan GT3s are expected to take part in next month’s Mobil 1 Twelve Hours of Sebring, with IMSA yet to declare the car’s BoP.