Ill add my 2 cents on the subject, IMHO I think if you have come from a relatively low powered car to an FG XR6 Turbo, id wait a couple of months, like it has been said these cars are no slouches to begin with and will get you in trouble if you cant handle it or are unaware of its characteristics. Also a good idea is to make sure you can afford to pay for any problem which may arise form modding and that includes covering warranty. Like anything mechanical you push it too much and things can go bang. That being said though, a simple tune will transform these cars and if done properly will be safe everyday, just make sure you look after it. Good luck with it