Increased engine performance from cleaner inlet air; Prevents oil buildup; Lowers hydrocarbon emissions
Radium Engineering 2015+ Subaru WRX Air Oil Separator Kit (INCLUDES 20-0255)
INSTALLATION INSTRUCTIONS AVAILABLE AT RADIUMAUTO.COM
AOS-R KIT, 2015+ SUBARU WRX, INCLUDES 20-0255
Engine Oil Catch Can Kit
AOS KIT SUB