i say do it. then you also have a good idea when the wheels are fitted how low you want and CAN go with the wheels on it. you see it al the time people lower a car than fit a bumper kit or a big wheel and then ooch the bumper is on the ground coz the car is to low or the rim doesn't fit in the wheel arch. so go for it and than see how much room you have left for lowering the car.