When increasing the boost on your EcoBoost Mustang, the stock plastic BOV can crack and leak. Turbosmart fixed this by constructing their BOV out of aircraft grade aluminum alloy construction that can with stand up to 30 PSI. The Kompact Shortie BOV also utilizes their new piston manufacturing process, allowing for razor sharp valve response. A softer internal spring is also used to help reduce compressor surge and premature venting. No one knows how to handle boost like Turbosmart, which is why there new Turbosmart Kompact Shortie BOV is a must have when upgrading your EcoBoost Mustang.