Safe Injection Electronic Boost Controller Relay by Snow Performance This relay harness allows the Safe Injection® system to cut the power supply to an electronic boost control (EBC) device. This can be an aftermarket electronic boost controller or a stock electronic boost control solenoid or bleeder valve. Cutting the power to most EBC systems allows uninterrupted boost pressure to reach the wastegate, reducing the boost level. The Safe Injection boost relay acts as the power supply connection for electronic boost controllers. The part number for this item is Snow Performance 30200.