Regular Price: $470.00 - Instant discount: $70.50 = $399.50
⛄ + 5% CASHBACK
⛄ Cashback Amount: $19.95
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Fitment Information:
2022-2024 Subaru WRX (left-hand drive only)
Features:
Crank case blow-by gets recirculated back to the intake to be ingested by the engine, but in doing so, it gets stuck in the intake tract, intake valves, and the intercooler. As it builds up over time, it causes extra wear and tear on your valve train potentially causing extensive damage to your engine. Blow-by/oil can also build up inside your intercooler which makes it less efficient due to less heat being transferred away from your engine, also leading to power loss and detonation.
The PERRIN Air Oil Separator prevents oil from entering the intake by capturing it from the crankcase vents. This reduces carbon build-up in the combustion chamber, intake valves, and in your intake tract, as well as improves intercooler efficiency and lowers the risk of performance-degrading detonation.
Included with this AOS is the Perrin Turbo Sump Pump Restrictor which fixes burning oil issues relating to turboback exhausts, or stage 2 and higher tunes. Also, the unique crankcase vent fitting allows for placement of the AOS in the perfect location to mantain the ideal temperature while staying out of the way of aftermarket TMIC's, FMIC's, and other engine bay components. Each Perrin AOS is designed to connect to each crankcase vent location separately without requiring any T-connections to allow for better venting and reduce the chance of oil being ingested during high G corners.
What's in the Box:
Haven't had to add any oil since install. If doing at the same time as the perrin turbo inlet would recommend doing the inlet install first, can bite you on the hose routing.
Awesome product. Dane is a superstar.
Difficult installation but it cleared up a check engine that I kept on getting and had to be regularly cleared.
This should be your first mod! Helps keep our beloved WRX's on the road for longer. It mounts in an odd location compared to another common option, but if you plan on adding a strut brace you'll want this one.
Great alternative to IAG as far as placement. I didn’t have to room to mount the IAG AOS because of my Perrin top mount. Installation was a little more time consuming but it all fit very well. Quality parts!
