20-0258-00 15-21 Subaru WRX / 14-18 FXT Radium Air/Oil Separator Kit

The Radium Air/Oil Separator Kit fits 15-21 Subaru WRX / 14-18 FXT. Part number 20-0258-00.

Features

• Machined aluminum AOS-R assembly: 3.45" diameter, 20.3 oz (600mL) capacity, heated by engine coolant
• Integrated water trap around the bottom perimeter prevents water from reaching the oil pan
• PCV valve replaced by a custom machined straight-through adapter fitting; collected oil drains back into the engine block through it
• Outlet plumbed to the turbo inlet pipe for a completely sealed system
• Mounts to the Radium brake master cylinder brace: 20-0258-00 includes the 20-0255 brace, 20-0258-01 is for cars that already have it (brace REQUIRED either way)
• SAE J30R7 rated PCV/emissions hose, coolant hoses and fittings, aluminum fittings and hose-ends, stainless hardware

Kit Includes

• 1x Machined aluminum AOS-R assembly with specially designed mounting bracket
• SAE J30R7 rated PCV/emissions hose, coolant hoses and fittings
• PCV delete (straight-through) adapter fitting
• All necessary aluminum fittings and hose-ends, stainless steel hardware
• 20-0258-00 only: 20-0255 brake master cylinder brace included

Applications

• 2015-2021 Subaru WRX (FA20F, left hand drive only)
• 2014-2018 Subaru Forester XT (FA20F, left hand drive only)
• Requires the Radium master cylinder brace (included in -00, separate for -01)