Radium Air Oil Separator Return Kit (AOS-R Kit) - 2013-2016 Scion FR-S / 2013-2020 Subaru BRZ / 2017-2020 Toyota 86 pdm_cold-air-intakes This design eliminates the use

This design eliminates the use of gaskets or sealants and always goes back to its original form

Street Sport

this solution is less harsh and still maintains better control of the transmission movement without the issue of Solid Mount Vibration

Designed for USDM vehicles only

in any motorsport stage

Radium Air Oil Separator Return Kit (AOS-R Kit) - 2013-2016 Scion FR-S / 2013-2020 Subaru BRZ / 2017-2020 Toyota 86 pdm_cold-air-intakes This design eliminates the useThis is the Radium Engineering Air Oil Separator R Kit. In high powered and modified Subaru engines, they tend to create excessive blow by with oil vapors and gasses. in these cases, a regular small catch can fill up quickly with oil and not be adequate. The AOS R kit will keep blow by oil and other pollutants out of the intake pipe, intake manifold, turbocharger, and intercooler (for those with aftermarket forced induction) during all engine loads.