1. run openIV
2. go to x64e.rpf\levels\gta5\vehicles.rpf
3. backup stunt.ytd and stunt+hi.ytd
4. replace stunt.ytd and stunt+hi.ytd form my rar ( in editor mode )
have fun!
update included:
Real Stunt Plane Handling
1. run openIV
2. go to update\update.rpf\common\data
3. backup handling.meta
4. replace handling.meta form my rar ( in editor mode )