HGK Racing - Supra MK5/A90 Anti-Smoke Inserts [HGK Supra-Jet bodykit]Rear fenders (anti smoke inserts) set will prevent smoke flow inside the car. All parts are for TRACK AND RACE CARS only (not exhibition), adjustments will be required at fitting. Please note that there may be occasional small imperfections, such as small cracks, scratches and or slight size variations, which in no way affect their high performance capabilities.