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The Radium Engineering Air Oil Separator kit for 2015 and later Subaru WRX (includes part 20‑0255) captures crankcase oil and vented contaminants before they reach the intake. By separating oil from blow‑by gases it helps prevent oil buildup, lowers hydrocarbon emissions and supports cleaner inlet air. This application‑specific kit is supplied as a complete AOS solution for the 2015+ WRX platform.
Radium Engineering 2015+ Subaru WRX Air Oil Separator Kit (INCLUDES 20-0255)
