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BP-4 Universal Transponder Ring Bypass Module
Universal solution for installing remote starters in vehicles with factory transponder immobilizer systems. Allows bypass of factory immobilizer by installing spare key in the module. Transponder code is sent through the loop ring antenna installed around the ignition cylinder.
BP-4 features flexible key ring to fit different size keys and wire loop style antenna ring for flexible installation. For stronger transponder signal pickup, please see BP-3.