The Turbosmart Kompact EM Dual Port VR7 Blow Off Valve (TS-0223-1087) replaces the factory electronic diverter valve found on VR7-based turbo systems, namely Chevrolet Turbo 2.0L's. Designed to maintain OEM ECU control, this billet performance upgrade improves boost holding capability and response while eliminating the common failure points of the original plastic diverter valve.