IBR Air Oil Separator - Subaru STi 2004-2021 / WRX 2002-2007 / FXT 2004-2008 BMW-335xi-2008 This item is currently in

This item is currently in a customs clearance process

hundreds of miles on road and track and numerous tweaks and modifications to get the most out of your vehicle

smoked central lens

Thanks to their uniquely shaped projector lenses paired with modern optics within

IBR Air Oil Separator - Subaru STi 2004-2021 / WRX 2002-2007 / FXT 2004-2008 BMW-335xi-2008 This item is currently inThis kit is designed to be the best AOS on the market. It is a triple pass system with carefully designed diameters and cross sections to effectively remove a range of oil droplet sizes. This AOS installs directly above the main crank case vent between the intake manifold and the TMIC. Installing here allows a clean look and the shortest possible hose routing. Since this is a true AOS the oil drains back into the block and never needs to be emptied.