K&N utilizes the largest conical air filter able to fit to maximize filtration on your 93-98 Toyota Supra Turbo. The performance of the FIPK intake system has been dyno proven, creating a 8.29 HP @ 5306 RPM horsepower increase on a stock Supra Turbo and imagine the gains with a few other mods. You can't argue with numbers like that from an air filter! This kit is CARB exempt in all 50 states, and mounts to the factory intake mounting locations with common hand tools. All necessary hardware is included for a complete and clean installation.