A statement from IMSA said that the tyre pressure data manipulation was discovered by Honda Performance Development (HPD) – whose Acura ARX-06 cars MSR runs – and reported to IMSA after the official results of the season-opening race were released.
As a result, team boss Mike Shank has been placed on probation through to 30 June, while team engineer Ryan McCarthy has had his IMSA credential revoked and is indefinitely suspended from its membership.
As a result, the MSR has been deducted 200 team and driver IMSA SportsCar Championship points, lost all team and driver IMSA Michelin Endurance Cup points, its race prize money and the team receives a $50,000 fine.
MSR dominated the race, which opened the IMSA SportsCar Championship’s new GTP era, with drivers Tom Blomqvist, Colin Braun, Helio Castroneves and Simon Pagenaud leading an Acura 1-2.
In a statement, the team said it accepts the series’ decision, apologised to its partners – including HPD and Acura – and "has dealt with this issue internally and the team member that was responsible is no longer with this organization".
IMSA confirmed that no changes will be made to the official race results. The #60 team and drivers retain credit for the Daytona 24 Hours race victory, trophy and race-winner watches.
All other teams and drivers will retain the points and prizes commensurate with their finishing positions as shown on the official race results. There also will be no change to GTP manufacturer points.