Protects electrical components from excess vibration For 7, 8, and10 series ignitions Great for harsh racing conditions Simple installation In many performance applications such as off-road, drag race, marine and oval track racing, strong vibration forces can be transmitted through the chassis to the MSD unit. MSD offers three types of vibration mounts, one for the MSD 5 and 6 ignitions, one for the MSD 7, 8 and 10 series, and one for the pro power coil.