{"product_id":"holley-hly558-321-gm-ls-coil-sub-harnesses","title":"Holley HLY558-321 GM LS Coil Sub Harnesses","description":"Holley HLY558-321 GM LS Coil Sub Harnesses is listed by Motorstate as a Ignition Wiring Harnesses for catalog matching by brand, part number, and product name. Use this source-backed listing when comparing Holley components in the Ignition Wiring Harnesses category. The manufacturer part reference is 558-321, while the Motorstate part number is HLY558-321. Catalog description context: Ignition Wiring Harness - Factory Replacement - Injector Sub Harness - GM LS-Series - Pair. No vehicle compatibility is stated here unless it is present in separate fitment data.","brand":"Holley","offers":[{"title":"Default Title","offer_id":49365905080563,"sku":"HLY558-321","price":207.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0675\/4471\/1411\/files\/HLY558-321.jpg?v=1782983398","url":"https:\/\/modern4wd.com\/products\/holley-hly558-321-gm-ls-coil-sub-harnesses","provider":"Modern4WD","version":"1.0","type":"link"}