Stroker kit for Subaru EJ20 / EJ205 / EJ207. Increases displacement up to 2.1L with horsepower and torque gains.

By increasing displacement to 2.1 liters you have a larger and more efficient "air-pump" which will move significantly larger volumes of air. This decreases the amount of time required to spool up both smaller and larger turbo systems as well as increases torque and total power capability of the engine.