This Perfect Fit ELITE™ Kit is engineered to actually fit your specific vehicle rather than a single unit that is adapted to fit a wide range of vehicles like competitors. We do not combine A/C and heat coils like most aftermarket systems. Classic Auto Air systems come equipped with separate large A/C and heat coils, just like factory systems. By using separate coils, we improve the cooling and heating capacity of the total system. This makes you cooler much faster!