Intercooler Stage 1 - Airtec - GR Yaris Gen1 & GR CorollaAirtec Motorsport Stage 1 Intercooler for GR Yaris Gen1 & GR Corolla AIRTEC Motorsport has developed a larger, freer flowing intercooler that is a direct replacement for the smaller and more restrictive original intercooler. Increasing the intercoolers size and performance is based upon our stepped core design to make the the most of the limited space available behind the bumper. The core steps from 110mm to 70mm and in doing so offers a huge 64%