Mishimoto Secondary Race Radiator for 2017-2021 Honda Civic Type R Alum

Mishimoto Secondary Race Radiator for 2017–2021 Honda Civic Type R (Aluminum) Keep your FK8 cool under extreme conditions. Designed for track days, canyon runs, and high-performance street use, the Mishimoto Secondary Race Radiator delivers supplemental cooling that prevents overheating, reduces thermal stress, and extends consistent peak performance. Key Benefits Additional heat extraction — a compact, efficient aluminum heat exchanger mounted behind the K20C1 to assist the stock radiator. Increased coolant capacity — more fluid volume improves thermal stability and reduces temperature spikes during long sessions. Engine bay airflow utilization — strategically positioned to use available airflow for continuous cooling without extra fans. Durable mounting — robust steel brackets provide secure, track-ready installation. Mishimoto Lifetime Warranty — backed for life for added confidence and reliability. Fitment & Application Purpose-built for the 2017–2021 Honda Civic Type R (FK8) with the K20C1 engine. Designed as a bolt-in supplemental radiator that taps in after the factory heater core for seamless integration with the stock cooling system. Why Choose Mishimoto Mishimoto combines motorsport-proven design with high-quality aluminum construction and precision mounting hardware to deliver a compact, effective solution when the stock system needs help. Perfect for drivers who demand repeatable lap times and worry-free cooling.