These days It's almost more uncommon to find a 2015-2021 Subaru WRX owner that isn?t looking to push more boost through their FA20DIT and give their morning commute a little more zest. With more boost comes the stock intercooler unit quickly gets in over its head. Mishimoto has the perfect intercooling solution with the Mishimoto 2015-2021 Subaru WRX Street Performance Top-Mount Intercooler. The Mishimoto'street Performance Intercooler takes the place of the stock unit and is specifically designed for use on the stock tune up to stage 2 maps and tunes. Our intercooler features fully cast aluminum end tanks TIG-welded to a robust bar-and-plate core designed for maximum cooling and minimal pressure drop. The new design boasts a 76-percent increase in core volume and 81-percent bump in external fin surface area equating to a 34?F drop in outlet temperatures over the stock unit. The 12-percent increase in flow is another reason why this intercooler the perfect addition to your tuned WRX This intercooler available in black, silver or gold with the optional add on of the Mishimoto ducting for increased airflow. Like all of our products, the Mishimoto 2015-2021 Subaru WRX Street Performance Top-Mount Intercooler includes the Mishimoto Lifetime Warranty for a worry free installation.