Subaru WRX Parts

The Subaru WRX is one the company's most beloved small sedans. It's an all wheel drive machine, an upgraded version of the Subaru Impreza. Not only is the WRX celebrated for its road grip, practicality, and fuel economy, but it also engages drivers with its all wheel drive. That said, the high-performance package that is the WRX may not be sufficient for some demanding drivers.

These drivers, many of whom are professional or amateur stock car racing enthusiasts, upgrade their WRX models with something known as "aftermarket engine management." To understand what aftermarket engine management is, you first should gain some insight into the WRX Engine Control Unit. What the ECU does is to gather data from a variety of sensors and feed the data to an electronic management device.

Upgrading Your Subaru WRX with Aftermarket Engine Management

The sensors measure position, airflow, fuel efficiency, and other parameters and then automatically adjust your engine's operation to optimize. Of course, race car enthusiasts may not be satisfied with standard WRX ECU performance. Thus, they may also upgrade their internal engine components.

Remember that, once you change a few parameters, you then need to recalibrate your onboard computer. Aftermarket engine management lets you specifically control how and when your engine burns fuel, exerts its pistons, and so forth. Since aftermarket engine management is complicated, even for diehard car mechanics, you may want to hire a professional Subaru mechanic to do the job for you.