PRL 2016-2021 Honda Civic 1.5T Intercooler UpgradeHondas 1. 5L turbo Civic is extremely susceptible to heat soak, especially when retaining the factory intercooler. Excessive heat soak increases the risk of detonation and causes major power loss due to high charge air and cylinder temperatures. These issues become even more prevalent with spirited driving and or increased power outputs. The PRL Motorsports intercooler upgrade decreases charge air temperatures while increasing potential airflow with