Radium Engineering Air Oil Separator Kit - 08-21 STI, 08-14 WRX, 09-13 FXT
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.
The main difference is that an AOS system returns what is collected back into the oil pan so there is no servicing required.
The AOS is constructed of three CNC machined sections that screw together and are sealed with O-rings.
Benefits
- Effectively raises the octane and increases engine performance with cleaner inlet air
- Prevents oil buildup in the intake or intercooler system walls, throttle body, intake manifold, etc.
- Lowers hydrocarbon emissions
What is included?
- Machined alumium Radium Engineering Air Oil Separator
- Subaru specifically designed mounting bracket
- All necessary SAE J30R7 rated PCV/Emissions hose
- Coolant hoses and fittings
- All necessary aluminum fittings and hose-ends
- Stainless steel mounting hardware
- Subaru specifically designed mounting bracket
- All necessary SAE J30R7 rated PCV/Emissions hose
- Coolant hoses and fittings
- All necessary aluminum fittings and hose-ends
- Stainless steel mounting hardware
Notes:
- Does NOT fit FA20DIT engines.
- If operated in freezing environments, Radium Engineering recommends installing insulation sleeving (not included) over any hose exposed to cold air flow. This will help prevent the natural phenomenon of water condensation freezing and potentially clogging the hose.
Fitment:
2008-2020 Subaru STI & Type-RA
2008-2014 Subaru WRX
2009-2013 Subaru Forester XT
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Radium Engineering Air Oil Separator Kit - 08-21 STI, 08-14 WRX, 09-13 FXT
Sale price$587.99 CAD