The Holley Terminator X harness is a critical component of your engine's performance, but getting it through the firewall can be a hassle. Don't settle for a messy installation that risks damage to your wiring. Instead, upgrade to our billet aluminum pass-through for a clean and reliable solution.
Crafted from top-quality billet aluminum and CNC machined to perfection, our pass-through provides a smooth and secure entry point for your harness. The base easily attaches to the firewall, creating a large enough hole for all your connectors and relays. And with a protective design that guards your wires from the sharp edges of the sheet metal, you can rest assured that your harness will stay safe and intact.
Once you've run all your wires, simply bolt on the included caps to seal up the hole and secure your wiring harness in place. And with stainless steel hardware that won't rust or corrode, you can trust that your pass-through will stand up to the test of time.
With a 1-1/8 inch main hole and a 3/4 inch small hole, our pass-through is the perfect size for most applications. So why settle for a subpar installation when you can have a clean and professional-looking upgrade? Trust our billet aluminum pass-through for the ultimate in performance and style.
