Radium AOS-R Air Oil Separator Kit (2015+ WRX/ 14-2018 Forester XT) air filters This means that it is

This means that it is suitable for turbo or supercharged applications running up to 7 Bar (or 101psi) of boost pressure

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195 Mercedes Benz S400 Hybrid V6 3

179 Mercedes Benz S65 AMG Base V12 6

Radium AOS-R Air Oil Separator Kit (2015+ WRX/ 14-2018 Forester XT) air filters This means that it isTHIS KIT IS FOR THE FA20 POWERED CARS 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 for keeping blow by oil and other pollutants out of the intake pipe, manifold, turbocharger, and intercooler during all engine loads.