Sikky Manufacturing - Mazda FD RX7 LS Swap Radiator (SM-RAD01)The Sikky FD RX7 Radiator kit was designed to be the end all solution for your cooling system with an LS swap. This bolt in radiator simplifies getting a properly sized radiator into the tight engine compartment of your FD RX7 chassis. We started with a custom core made right here in the USA and designed the end tanks and mounting points to fit like stock. This large 2. 25 Dual Pass radiator will keep up with the cooling demands of your engine for