WILL NOT EFFECT THE OPEN AND CLOSE OF THE ROOF. Makes a great deal of difference, it means that there is no in-cabin buffeting and at any speed. A solution to open top driving discomfort. Reduces road noise, reduces wind turbulence. And retains heat inside the cockpit. The Wind Deflector will prolong the driving months allowing you to get the most from your car even on cooler days. Wind deflector are available for most roadsters, sports cars and convertibles, the are designed to fit your car make, model and year. Manufactured from quality materials and constructed of a metal frame with fabric mesh material. Easy to fit and easy to remove if not in use. In most cases holes are already provided in the vehicle in which the wind deflector will simply locate.