How do you install a blowoff valve on a Mitsubishi 3000GT VR4?

To install a blow-off valve on a Mitsubishi 3000GT VR4, first, ensure you have a suitable BOV kit and the necessary tools. Begin by locating the factory recirculation valve and removing it, then attach the new BOV in its place using the provided hardware. Ensure that the vacuum line from the BOV is properly connected to a vacuum source on the intake manifold. Finally, check for any leaks and adjust the valve's spring tension as needed for optimal performance.