If the lugs arent broken you will prob get away with it if it isnt to bent. under the car to the left and right of the fuel tank are two pairs of bolts, they are sort of recessed and are 17mm (i Think!) undo all four and then you can withdraw the bumper. if it is factory fitted there will also be some screws along the bottom of the palstic these will need removing to (im not 100% about this bit tho!)