Moroso Air Oil Separator Subaru WRX 2006-2007 / STI 2004-2007

Part # 85484. In factory set - ups, excess crankcase vapors, residual oil, and moisture get vented back into the intake manifold and crankcase ventilation system. This creates a detonation - prone oil layer on pistons and other parts, which is a big no - no in turbocharged vehicles. Moroso's innovative 2 - tank system lets the factory crankcase ventilation work as intended, a feature no other market system offers. The billet aluminum bodies look great in any engine compartment and can be polished, chromed, or powder - coated for a personalized touch. Each separator comes with a billet aluminum clamp and a bottom drain with an elbow, making oil drainage clean and easy. The kit includes stainless steel mounting brackets, 1/2' inlet and outlet fittings, 66' of 3/8' diameter, and 66' of 1/2' diameter rubber hoses for inline plumbing. This kit is for cars with a TMIC and stock - location turbo, not suitable for FMIC or rotated - mount turbo setups.

Using your Moroso Air Oil Separator is easy. First, use the stainless steel mounting brackets to install the separator in your engine compartment. Connect the 1/2' inlet and outlet fittings to the appropriate parts of your engine's ventilation system using the provided rubber hoses. Make sure all connections are tight to prevent any leaks. When it comes to draining the collected oil, just use the bottom drain with the elbow. It's designed to keep the process mess - free. Remember, this kit is only for cars with a TMIC and stock - location turbo. Don't try to use it with a FMIC or rotated - mount turbo as it won't work properly. For maintenance, regularly check the hoses for any signs of wear or damage. You can also clean the billet aluminum bodies as needed. You can polish, chrome, or powder - coat them to keep that custom look over time.