An acronym for World Rally eXperimental, the WRX elevated the Impreza model using rally-inspired features and advanced technology such as turbocharged four-cylinder engines and more intense suspensions for greater control and ride comfort. As with others within the Impreza family, the Subaru Impreza WRX engine has a boxer design. This type of engine provides optimum vibration control, thanks to opposing pistons that counter the motion of each other and specific balancing that eliminates the need for a harmonic balancer. Whether you are rebuilding a vehicle, making major repairs, or creating your own customized car, shopping the vast inventory on eBay lets you browse a wide array of engine options to find the ideal one for your project. A complete engine is ideal for bringing discarded vehicles back from the brink of the junkyard. Alternatively, it can allow you to upgrade your existing vehicle for greater power. Install a Subaru Impreza WRX STI engine for high performance, or take advantage of other engines for their components, and build the ideal motor for your vehicle. Find a Subaru Impreza WRX engine and save your vehicle from an untimely scrapping.Shop the extensive inventory of motors, parts, accessories, and complete engines for Subaru!