The blow off valve helps reduce the amount of rebuilds on turbocharger as well as improve acceleration between gears.<br><br><strong>Features:</strong><br>100% brand new.<br>Helps eliminate compressor surge.<br>Fits for most cars with 50mm intake pipe.  <br>Comes with flange adaptor.<br>Professional installation is highly recommended.<br><br><strong>Specifications:</strong><br>BOV Color: Red， Blue， Purple (Optional)<br>Adaptor Color: Silver<br>Material: Aluminum Alloy<br>BOV size: approx. 9.2 * 7.9 * 7.9cm / 3.6 * 3.1 * 3.1in<br>BOV weight: approx. 407g / 14.3oz<br>Package size: approx. 12 * 11 * 8.2cm / 4.7 * 4.3 * 3.2in<br>Package weight: approx. 528g / 18.6oz<br><br><strong>Package List:</strong><br>1 * Blow Off Valve<br>1 * Flange Adapter<br><br><strong>Note:</strong><br>This valve is suitable for custom installations only， and cannot be installed on a silicon hose.