Description The award-winning Kompact EM series Blow-Off Valves are the world’s first truly plug-and-play Blow-Off Valves. Unplug and unbolt your OEM Blow-Off Valve, and install ours in its place. No adaptors, hoses, or extra assembly are required. All this while retaining complete OE control of the BOV’s operation. Key Features Include Patented integrated pressure control True plug and play upgrade Integrated proprietary high-temperature solenoid valve Billet construction with high-temperature o-rings Available in plumb back or dual port options.