AEM Infinity 7 Series Connector Plug and Pin Kit: This comprehensive connector kit includes a pair of housings, rear wire dress covers, terminals, and the necessary wire seals for a complete installation. The kit features one 2.8 size cavity, 72 size 0.64 cavities on the grey keyway connector, and 56 size 0.64 cavities on the blue keyway connector. Additionally, this kit is compatible with certain GM E series ECUs. Includes Relay.