General Information
*Please note: May not apply to all kits

Plumbed into a vehicle's PCV system to capture the excess crankcase vapors, residual oil mist and moisture from reentering the intake tract
Vehicles from the factory vent these excess crankcase vapors, residual oil mist and moisture right back into the intake manifold which could cause detonation, oil deposits to form in the intake tract including the valves themselves and from lowering the efficiency of the intercooler in intercooler equipped vehicles
Increases engine performance from cleaner intake air
Air-Oil Separators have billet aluminum bodies with internal baffling and mesh media
Includes heavy duty brass inlet and outlet fittings, Fuel/Emission/PCV Vapor hose, stainless steel mounting bracket and billet aluminum mounting clamp for the body of the separator
Some Vehicle crankcase ventilation systems require that 2 Air-Oil Separator bodies be used to properly capture and ventilate the system

Moroso Air-Oil Separators are available in 2 sizes, not all kits are available with both size body.

Air-Oil Separator Kits, Large Body
The original size, 43% more capacity than the Small Body Version
Features a bottom drain with elbow that makes draining the collected oil virtually mess-free
Polished body can be chromed, painted, or powder coated for a custom look

Air-Oil Separator Kits, Small Body
Smaller size fits in more applications and some customers prefer the smaller size body
Two piece body unscrews for draining
Available with a polished or black anodized finishLearn More