What is a diverter valve?
A diverter valve (DV) is a pathway for boost when it is not being used by your engine. Whenever the throttle body is closed, like during shifts or decelleration, the boost needs an escape route. If the boost cannot escape during these times, it can back up and cause shocks to the turbos. These shocks will stall the turbos, slowing boost production upon re-acceleration (turbo lag). Even worse, these shocks can cause damage to the turbos. The diverter valves’ job is to open when the throttle body is closing or closed, and reroute the boost to the low pressure intake side of the turbos, where it can do no harm. The stock diverter valve uses a rubber diaphragm to open and close this pathway. This type of design is prone to unwanted boost escape, honking noises, and surging during part throttle. Bailey Motorsport has developed a direct-replacement, alloy body diverter valve that eliminates all of the above problems. The Bailey Motorsport DV30 diverter valve uses a high temperature composite
