Radium Air Oil Separator Kit w/ Master Cylinder Brace WRX 2015-2021 / Forester XT 2014-2018 EVO_2008-2015 if your harness is a

if your harness is a piece of crap

5-Axis machined billet impeller and high-diffusion housing developed in their SAE-J1723-compliant supercharger test cell

This helps protect your engine from harmful debris while maintaining optimal performance

This valve is designed to vent partly to atmosphere and partly back to the intake giving you the "best of both worlds"

and custom made high misalignment studs that offer extreme articulation capability (65 degrees) to prevent the endlink from binding when used with different adjustment holes on aftermarket sway bars

Radium Air Oil Separator Kit w/ Master Cylinder Brace WRX 2015-2021 / Forester XT 2014-2018 EVO_2008-2015 if your harness is aPart #: 20 0258 00 This radium air oil separator kit is compatible with the 2015+ Subaru WRX and 2014+ Subaru Forester XT with the FA20F engine (left hand drive models only). High powered modified Subaru engines tend to generate excessive blow by oil and gasses. In these cases, an ordinary small catch can may quickly fill with oil and not be adequate. Like the Radium Engineering Subaru Dual Catch Can Kit, the AOS (Air Oil Separator) kit is responsible