S5 FC Thermostat Housing Flange

Aluminum Thermostat Housing Flange fits all S5 FC Mazda RX-7 13B water pump housings. Designed for applications where the OEM housing needs to be eliminated due to space restrictions (Large turbos, 20B swaps, V-Mount installs, etc.) 

Laser cut 3/8" Aluminum with 1.5" Dia. center to accommodate 1.5" OD pipe.