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The Injector Dynamics bottom adapter for Subaru WRX converts a 14mm injector bottom to accept a 16mm injector, allowing larger‑diameter injectors to be used in vehicles with a 14mm seat. It is a simple hardware solution for injector swaps that require a stepped adapter at the lower injector interface. This adapter provides a mechanical fit change without modifying the injector rail or body for supported Subaru WRX applications.
Injector Dynamics Subaru WRX Bottom Adapter 14mm to 16mm
