{"product_id":"gm-4l60-80e-transmission-harness","title":"GM 4L60\/80E Transmission Harness","description":"The Holley EFI GM 4L60\/80E Transmission Harness (Part # 558-405) is a fully terminated harness engineered to provide electronic control for GM 4L60E and 4L80E transmissions when used with a Holley Dominator EFI system. This harness utilizes a J4 connector, ensuring a direct interface for seamless integration.\n\nThis harness is designed for pre-2009 GM 4L60E and 4L80E transmissions. It is not recommended for 4x4 applications that utilize electronic transfer cases. For 2009 and newer GM 4L60\/80E transmissions, Holley EFI Part Number 558-455 should be used.\n\nThe harness is sold individually and is a crucial component for integrating modern EFI control with these specific GM automatic transmissions. Holley EFI systems are widely adopted in racing and high-performance street applications, known for their ease of use and comprehensive features.","brand":"Holley EFI","offers":[{"title":"Default Title","offer_id":52872141308216,"sku":"558-405","price":337.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/store.motormia.co\/products\/gm-4l60-80e-transmission-harness","provider":"MOTORMIA","version":"1.0","type":"link"}