CSF 2023+ Toyota GR Corolla/2020+ GR Yaris High Performance Stepped Core Intercooler System - BlackTesting was performed at World Motorsports in Torrance, CA with the help of Moto IQ . The OEM intercooler was run first to establish a baseline. You can see the OEM intercooler reaches heat soak relatively quickly (about 3 pulls). Performance was fairly impressive for an OEM intercooler, able to drop the charge air temperatures approximately 150F. The CSF x Jackson Racing Intercooler just blew the factory system out of the water though. Charge air