well it depends you sometimes don't need a tweak for smoke but do you use the normal keyboard control or some other settings!? sometimes to make the car smoke you'll just do a quick burnout at the start in the pits but not to make the tires pop it won't just directly smoke after few drifts it'll start smoking and the drift will be harder to control etc.. but when i do that when i drift with XRG like that with smoke i use keyboard also but i keep the car on 5-6 RPM cuz you can't control it on 7RPM on the end of the corner press it to it's limit and it'll smoke like snow hope you understood what i was saying and this was helpfull