An oil catch tank is used in turbo applications， or high-performance racing applications where excessive blow-by (leakage past the piston rings) of air and fuel vapor occurs. This creates a positive pressure in the crankcase. During engine operation， blow- by gases， as well as oil mist from the rotating components of the engine， pass through the PCV valve and are routed back into the intake for the engine to burn off. However， some of the oil mist and other by-products settle along the engine intake and over time form a gunk. The oil catch tank collects such oil mist and condenses the fuel vapors while allowing cleaner gases to be passed back into the intake.<br /><br />Features:<br />Catch oil and sludge to save the life of the engine.<br />Ensure better mileage， better performance and preserve engine life.<br />Built-in air filter included.<br />Good accessory for car replacement.<br />Professional installer is highly recommended.<br /><br />Fitment:<table border="1" cellpadding="1" cellspacing="1" style="width: 500px;">    <tbody>        <tr>            <td>Model(N20/N26)</td>            <td>Year</td>        </tr>        <tr>            <td>F20 125i</td>            <td>12-13</td>        </tr>        <tr>            <td>F22 220i/228i</td>            <td>14-16</td>        </tr>        <tr>            <td>F30 320i/328i</td>            <td>12-16</td>        </tr>        <tr>            <td>F34 320i/328i GT</td>            <td>13-16</td>        </tr>        <tr>            <td>F32/F33 420i/428i</td>            <td>14-16</td>        </tr>        <tr>            <td>F36 420i/428i</td>            <td>15-16</td>        </tr>    </tbody></table><br />Specifications:<br />Color: Black<br />Material: Aluminum alloy<br />Package Size: 26 * 15 * 9.5cm / 10.2 * 5.9 * 3.4in<br />Package Weight: 1205g / 2.7lbs<br /><br />Package List:<br />1 * Oil Catch Can<br />2 * Pipes<br />1 * Set of Accessories<br><img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/K/6/K5206/K5206-1-a71d-aSlC.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/K/6/K5206/K5206-1-a71d-4ago.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/K/6/K5206/K5206-1-a71d-MImA.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/K/6/K5206/K5206-1-a71d-UIyY.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/K/6/K5206/K5206-1-a71d-jNJa.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/K/6/K5206/K5206-1-a71d-TFD3.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/K/6/K5206/K5206-1-a71d-vSbu.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/K/6/K5206/K5206-1-a71d-uGqQ.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/K/6/K5206/K5206-1-a71d-cGQj.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/K/6/K5206/K5206-1-a71d-asJg.jpg" /><br>$$<img src="//img.tomtop.com/product/xy/2000/2000/p/gu1/K/6/K5206/K5206-1-a71d-qNa2.jpg" /><br>