Try to install without cutting.I submerged the brake/clutch pedals in hot soapy(dawn)water. The rubber softens up..work the pedals into place,use a slotted screw driver to get the rear lip to fully cover the metal pedal. Use a mirror to confirm.The soap evaporates,rubber returns to normal texture. Pry off dead pedal. Push the new one on. Gas pedal can be a project.Try to understand the steps before you begin. If you have any doubts,let the agency or performance shop handle it. Good luck,they look awesome.