to stay safe and legal, I would only go 2 inch, but as you have a paj, you would only get 35mm max, so then you would have to go for a body lift of 2 inches also, then you can put in a tyre that is one size bigger so that it doesn't stand out (so there is not a big gap in the wheel arches) and then it would look normal and not catch the eye of the authorities. It also works if you don't drive like an idiot, just look at the people that get the import nissans, toyotas ect, they were there own worst enemy, lets not let 4wd's go down the same road.