DeatschWerks X2 Series fuel pump module for 2008–2021 Subaru WRX/STI is a vehicle‑specific in‑tank module designed for those model years. Product descriptions list compatibility across WRX/STI years and several Subaru platforms; it replaces the factory pump module with an X2 Series unit intended to accommodate upgraded fuel delivery needs in the supported Subaru applications.
DeatschWerks 08-21 Subaru WRX/STI X2 Series Fuel Pump Module