Traction can make the difference between putting power down effectively and wasting it. Designed for Subaru WRX, STI, BRZ, Legacy GT, and Forester XT applications, performance differentials help distribute power more efficiently to improve grip, stability, and driver confidence. IAG Performance offers differential upgrades for EJ25, FA20, and FA24 platforms that are ideal for street driving, autocross, drag racing, and track use.