We spent quite a lot of time trying to find a suitable intercooler. E30’s really don’t have any extra space up front, so most boosted E30’s end up just hanging the intercooler in front of the car or cutting out a large section of the bumper. We are trying to maintain an OEM look with this car, so our goal is to make the intercooler completely invisible. After a lot of measurements, we ended up buying a tiny intercooler with a 18”x7”x2” core and 2.25” J-bends for the piping. We don’t have crazy power goals in mind for this car, so we don’t think the small size is going to give us any issues.