If u look on the slam panel by the inside of the headlight there you will see about a 18mm hole , if you look diwn this hole you should see a t30/t35 torx screw(there will be on on bith sides if slam panel), if my memory serves me right you need to turn these screws clockwise to raise the bumper and minimise the gap and counterclockwise to lower it. This is provided that you refitted the bumper correctly on to the adjustable properly. I did mine before i re tightened all the bolts on the bumper, but i believe it can be done without the bumper being loose,