In Gran Turismo 5 however, all previously-installed upgrades are removed after installing the racing modifications, but the racing modification themselves will also include Full Custom Suspension and Full Custom Transmission upgrades as well as making the car lighter than the usual weight reduction upgrades (Stage 1, 2 and 3 + Window Weight Reduction Upgrades). The ability to adjust the front and rear downforce aerodynamics are also available on all RM cars. Performing a Race Modification on one of the cars below for the first time will earn you a "Race Ready" Trophy.