HPI EVOLVE Radiator Series Direct from Japan *Ships via FedEx — approximately two weeks from order* Shipping calculated at checkout What is the HPI EVOLVE Radiator?The EVOLVE Radiator is designed to push your vehicle's performance further — exactly as the name suggests. It keeps coolant temperatures stable during hard track sessions as well as in slow-moving city traffic where airflow is minimal. With an optimised core width, fin design, and pitch, it's suitable for everything from stock vehicles to heavily tuned builds across all driving conditions. What is the Standard Series?The Standard Series features a high-capacity core that holds an exceptional volume of coolant. It delivers outstanding cooling efficiency, keeping water temperatures in check over multiple laps, and is well-suited to mini circuits and drift use where direct airflow to the radiator is limited. What is the Light SH Series?The Light SH Series uses a slim-profile core to reduce weight and simplify installation. Its enhanced self-cooling properties allow water temperatures to drop quickly during cooling laps, providing consistent and reliable performance. Versatile enough for daily road use as a direct OEM replacement, right through to light-tune street and sport builds. What is the Multi-Flow Series?The Multi-Flow Series places large-capacity tanks on both sides of the core, circulating coolant through multiple passes for repeated heat exchange within the same footprint. The result is exceptional cooling capacity and temperature stability even during extended track sessions. It also delivers effective cooling via the electric fan after you've stopped and parked. Recommended for circuit use and any vehicle requiring cooling performance beyond the standard OEM level. What is the Control Plate?On models where the lower hose fitting sits directly below the upper hose fitting, an in-house developed Control Plate is fitted inside the upper tank. This plate regulates coolant flow, evenly distributing the fluid across the entire radiator core as it moves from the upper tank to the lower. The result is more efficient and uniform heat exchange throughout the whole unit.
