{"product_id":"fqranbo-firewall-pass-through-for-holley-terminator-x-max-black-anodized-aluminum-bulkhead-2-hole-clamshell","title":"FQRANBO Firewall Pass Through for Holley Terminator X Max - Black Anodized Aluminum Bulkhead, 2-Hole Clamshell","description":"\u003cp\u003e\u003cstrong\u003eFQRANBO's Firewall Pass Through replaces the stock grommet to route a Holley Terminator X Max wiring harness cleanly through the firewall using a two-piece, anodized aluminum bulkhead.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis pass-through is built to tidy engine-bay wiring by providing a durable, finished feed-through for the Holley Terminator X Max harness without relying on the factory rubber grommet. Machined from aluminum and anodized for corrosion and heat resistance, the unit offers two holes sized to fit common harness runs and a clamshell-style assembly that clamps wiring securely while protecting insulation from chafing.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this pass-through make firewall wiring neater?\u003c\/h3\u003e\n\u003cp\u003eThe FQRANBO design converts a messy rubber grommet into a clean metal bulkhead that organizes the harness exit and gives a factory-like finish. Its two-piece shell clamps around the wiring, preventing the harness from sagging or shifting and creating a visible neat point where the engine harness meets the cabin bulkhead.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eClamshell assembly secures wires flush to firewall.\u003c\/li\u003e\n  \u003cli\u003eArc-shaped wire opening reduces abrasion against insulation.\u003c\/li\u003e\n  \u003cli\u003eProvides a finished, professional appearance in the engine bay.\u003c\/li\u003e\n  \u003cli\u003eFits Holley Terminator X Max harness routing without extra adapters.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the exact dimensions and hole sizes?\u003c\/h3\u003e\n\u003cp\u003eUnderstanding the sizing helps ensure this pass-through fits your firewall hole and harness. The outer plate measures 3.78\" by 2.125\" (3.78\" x 2 1\/8\") and it contains two wire apertures sized to accommodate typical engine harnesses safely.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMain opening: 1 1\/8\" diameter for larger harness bundles.\u003c\/li\u003e\n  \u003cli\u003eSecondary opening: 3\/4\" diameter for smaller leads or sensor groups.\u003c\/li\u003e\n  \u003cli\u003ePlate outer dimensions: 3.78\" by 2 1\/8\" for accurate cutout planning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow is the pass-through installed and secured?\u003c\/h3\u003e\n\u003cp\u003eInstallation is straightforward: bolt the base plate to the firewall, route the harness, then clamp the top half over the wiring and fasten with the included middle and perimeter bolts. The two-piece arrangement makes it easy to retrofit the unit without disassembling the entire harness.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFix the base plate to the firewall first to establish position.\u003c\/li\u003e\n  \u003cli\u003eLay the harness into the arc-shaped channel to avoid pinching.\u003c\/li\u003e\n  \u003cli\u003eReassemble the top panel and tighten middle bolts to clamp harness.\u003c\/li\u003e\n  \u003cli\u003eSecure with four outer bolts for stable, vibration-resistant mounting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy choose an anodized aluminum pass-through over a rubber grommet?\u003c\/h3\u003e\n\u003cp\u003eAn aluminum bulkhead provides long-term durability and superior protection against heat, oil, and abrasion compared with soft rubber. The anodized finish improves corrosion resistance and presents a polished look while the precision-polished edges and arc-shaped opening protect wire insulation from wear over time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAluminum construction resists heat and structural fatigue.\u003c\/li\u003e\n  \u003cli\u003eAnodized surface repels corrosion and resists engine-bay chemicals.\u003c\/li\u003e\n  \u003cli\u003ePrecision-polished edges minimize wiring abrasion risk.\u003c\/li\u003e\n  \u003cli\u003eSturdy clamp design prevents harness movement under vibration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This FQRANBO Firewall Pass Through is aimed at enthusiasts and professional installers fitting a Holley Terminator X Max into classic cars, hot rods, or performance builds who want a durable, tidy firewall feed without the factory grommet. It suits anyone seeking a finished engine-bay appearance, improved wire protection, and a repeatable installation method for performance wiring harnesses.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this fit my Holley Terminator X Max harness?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the pass-through offers 1 1\/8\" and 3\/4\" openings sized for Terminator X Max common harness bundles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What material is the pass-through made from?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It's machined from aluminum with an anodized, precision-polished finish for heat and corrosion resistance.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"FQRANBO","offers":[{"title":"Default Title","offer_id":48084513095838,"sku":"B0DQ4P5H81","price":30.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/fqranbo-front-assembled-bulkhead.jpg?v=1785858273","url":"https:\/\/northtrailauto.ca\/products\/fqranbo-firewall-pass-through-for-holley-terminator-x-max-black-anodized-aluminum-bulkhead-2-hole-clamshell","provider":"North Trail Auto","version":"1.0","type":"link"}