Male:

Grand Theft Auto V\mods\update\x64\dlcpacks\mpairraces\dlc.rpf\x64\models\cdimages\mpairraces_male.rpf\mp_m_freemode_01_mp_m_airraces_01

Female:

Grand Theft Auto V\mods\update\x64\dlcpacks\mpairraces\dlc.rpf\x64\models\cdimages\mpairraces_female.rpf\mp_f_freemode_01_mp_f_airraces_01

For Bonus Red Ferrari Jacket:

Female:

Grand Theft Auto V\mods\update\x64\dlcpacks\mpbattle\dlc1.rpf\x64\models\cdimages\mpbattle_female.rpf\mp_f_freemode_01_mp_f_battle

Male:

Grand Theft Auto V\mods\update\x64\dlcpacks\mpbattle\dlc1.rpf\x64\models\cdimages\mpbattle_male.rpf\mp_m_freemode_01_mp_m_battle