{"product_id":"holley-efi-terminator-efi-input-output-kit","title":"Holley EFI Terminator EFI Input\/Output Kit","description":"PN 558-420 contains 5 extra input\/output wires that the base Terminator EFI harness does not contain. It contains Input wires for Inputs 1-4. It contains one wire for Output 2. These inputs and outputs can perform features and functions that must be programmed via Holley EFI laptop software. The software also contains instructions on how to program these.\u003cp\u003e\u003cbr\u003eShop high-quality truck parts, auto parts, and performance accessories engineered for strength, reliability, and a precise fit. Each component we carry is carefully vetted for durability, safety, and real-world performance—meeting or exceeding OEM standards. Whether you’re replacing worn parts, upgrading suspension systems, or adding off-road equipment, Truck \u0026amp; Auto Parts Store provides trusted OEM and aftermarket brands designed to handle the demands of trucks, SUVs, and 4x4s. With expert support, fast U.S. shipping, and a commitment to customer satisfaction, you can order with confidence knowing every product delivers dependable performance on the road and off.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":51487307595992,"sku":"GVMR_558-420","price":52.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0684\/3180\/6680\/files\/558-420_01.jpg?v=1773944548","url":"https:\/\/www.truckandautopartsstore.com\/products\/holley-efi-terminator-efi-input-output-kit","provider":"Truck \u0026 Auto Parts Store","version":"1.0","type":"link"}