Fitment Information  Hyundai Optima 2.0T (2011, 2012, 2013) Emissions Compliance This item has not been CARB certified so it does not ship to California Specs & Features Dual Vitom O-Ring Design Fast Response Allows you to run high boost pressure The TurboXS SML Hybrid Blow Off Valve is our newest blow valve and is designed specifically to replace the blow off found used on stock Mitsubishi turbochargers found in many current turbocharged vehicles.  The valve piston features a dual Vitom o-ring design.  The valve design allows us to use a soft spring thats creates fast response while still giving you the ability to run high boost pressure levels that can lead to diaphragm failure in OEM valves.