{"product_id":"crankcase-ventilation-system","title":"Crankcase Ventilation System","description":"Direct injection engines can accumulate deposits on the backside of intake valves, a problem exacerbated in boosted engines due to increased oil vapor in the crankcase. The stock PCV system recirculates this oil vapor into the intake air, contributing to valve buildup. The Flyin' Miata Verus air\/oil separator (AOS) supplements the stock PCV system by collecting air from both the crankcase and the head.\n\nThis AOS utilizes a multi-stage filtration process. Air from each source is first passed through a dedicated 5-micron coalescent filter. The separated oil is captured in the unit and can be easily drained via a valve, providing a visual indicator of engine health. Finally, the air is given a final scrub by two additional 5-micron coalescent filters before returning to the intake manifold and piping. The system includes a PCV valve that is compatible with forced induction setups and can handle positive intake manifold pressure.\n\nIf your vehicle is equipped with a sound tube, a sound tube delete will be required. Otherwise, all necessary components for installation are included. Please be aware that this product is not legal for sale or use in California due to emissions regulations, as it does not drain back to the oil pan. It is also not permitted for use in Colorado.\n\nThis AOS is intended for LHD (left-hand drive) vehicles. While it can be adapted for RHD vehicles, some modification to mounting and hose routing may be necessary, as installation instructions are geared towards LHD configurations.","brand":"Flyin' Miata","offers":[{"title":"Default Title","offer_id":52867545628984,"sku":"04-37960 2016+","price":389.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687955545.webp?v=1787911849","url":"https:\/\/store.motormia.co\/products\/crankcase-ventilation-system","provider":"MOTORMIA","version":"1.0","type":"link"}