Hello everyone, I`ve half finished fitting the Magnum rear arches and they`re fucking huge! (defo need the front ones to balance the car out though) Two problems though. Firstly I need to extend the width of the bumper 2 inches either side, is fibre glass up to the job and does it bond well to bumper plasic? Secondly I need to extend the filler cap housing out about two inches, can I buy a kit to do this? anyone any other ideas? I can`t believe how much room my 17`s have got now, may drop it 70 on the rear!