Car Electronic Turbo Blow Off Hooter Valve Universal Analog Sound BOV Turbocharger Relief Valve

Specification: Color: Red+Black Material: ABS(Acrylonitrile Butadiene Styrene) Size: Approx. 143x112mm/5.63x4.41" Applicable Models: General without TURBO According to The Loading: Connect the cathode wires battery, switch connected to the vehicle accelerator 4 wires connection system (Black is for Negative, Red is for Positive, Blue and Green are for the Switch) Package Included: 1 X Car Blow off Valve Sound Electronic Turbo with Switch 1 X Mounting Bracket & Accessories Installation Instruction: -Wired red wire to positive battery terminal -Wired black wore to negative terminal -Fed switch wires (blue and green) through fire wall to accelerator pedal -Attached micro switch to accelerator pedal -Connected switch to the normally closed terminal and earth terminal on micro switch -Push accelerator fully in, when releasing the speaker makes dump valve sound -Professional installation is recommended