It's a known fact that the Renesis Rotary Engine in the Mazda RX-8 runs hot. While the stock radiator is enough for daily driving cooling, it's a good idea to think about upgrading to a purpose built aluminum racing radiator when it comes time to hit the track. Check out our offering of cooling upgrades for your RX-8, whether it's a new radiator or radiator accessories such as silicone hoses, fan shrouds, or even thermostats.