Verus Engineering AOS Drain Back Kit - 2015-2021 Subaru WRX

The optional AOS Drain Kit allows for hassle-free, long-term use of the AOS without the need for draining or maintenance. It provides an effortless solution for those who prefer a hands-off approach. The AOS functions like a standard drain-style unit by default. Verus Engineering AOS Drain Back Kit  SPECS: Automatically Drains Oil Caught in the AOS Back into the Engine Maintenance Free Oil Separation CNC Machined Aluminum and Anodized Fittings 1/2" Rubber Hose   INCLUDES: Pre-Cut 1/2" Hose, 38" 1/2"x1/2"x1/2" T Adapter Fittings (1) 6AN ORB to 1/2" Hose Barb (1) AOS Drain Fitting (1) #014 Buna O-Ring (1) Zip tie (4)   DESIGNED TO DRAIN THE OIL FROM THE AOS BACK INTO YOUR ENGINE With the utilization of our supplementary AOS Drain Kit, your AOS can deliver years of trouble-free performance. No longer will you be required to drain the unit, open it up, or engage in any other procedures aside from driving your vehicle! It's important to note that the AOS Drain Kit is an optional accessory, intended for those individuals who desire this particular feature. Out of the box, the AOS operates like a standard drain-style unit.