IronClad Industries "Race Intercoolers" pack a punch with a 4.5'' thick core allowing for 169% more volume than a factory 2017-2019 intercooler and 109% larger than factory 2020 RR Intercooler. The high-quality end tanks matched with our superior cores allow for incredible cooling efficiency over our competition. These are all built in house with our own design concepts. This intercooler is interchangeable between all year x3's and allows you to run your factory top plastic shroud. This intercooler comes with with custom shroud built to the intercooler, along with a top of the line high flow low amp brushless slim fans. This intercooler does require some cutting for the intercooler to fit snuggly in place!