Vintage Air SureFit air conditioning, heating and defrost systems are designed to be used as a direct replacement of your stock OEM heater or worn out air conditioning system in many popular cars & trucks. It matches the coil and blower to give you the maximum amount of comfort in your vehicle. Factory controls are used with these systems (unless noted). SureFit evaporator packages install without drilling extra holes, providing your car has a stock dash and firewall. Some of the features of the SureFit system are that it mounts completely behind dash and features a high capacity blower. These kits are also known as Sure Fit A/C or AC kits.