Firewall Junction 2 Hole

The Firewall Junction 2 Hole from QUICKCAR RACING PRODUCTS is a precision-engineered aluminum manifold block designed for custom engine bay wiring and pneumatic routing in high-performance and race vehicle builds. Built for mechanics and fabricators who demand reliability in demanding engine compartment environments, this component serves as a central distribution point where multiple fluid or air lines meet a single junction. Whether you're upgrading a nitrous oxide system, installing custom cooling circuits, or routing pneumatic controls in a race car, the Firewall Junction 2 Hole provides a compact, durable solution that consolidates connections and reduces clutter.

Machined from lightweight aluminum and finished in black anodize, this junction block features two 1/8 inch NPT (National Pipe Thread) ports that accept standard pneumatic fittings, hoses, and line adapters used throughout motorsports applications. The black anodized coating provides corrosion resistance and thermal stability in high-heat engine bay conditions, while the aluminum construction keeps weight minimal—critical in race car weight reduction. The compact 3.5 x 0.8 x 4.55 inch footprint allows tight mounting in firewall-adjacent locations without consuming valuable underhood real estate, and the featherweight 0.15 pound design integrates seamlessly into fuel system, ignition control, or pneumatic management setups.

Professional engine builders, circle-track racers, and street-performance enthusiasts benefit most from this manifold block when consolidating multiple 1/8 NPT connections into a single mounting point. It pairs exceptionally well with turbocharger boost controllers, nitrous solenoid banks, fuel pressure regulators, and custom air suspension systems that require organized line routing. Installation is straightforward for anyone with basic mechanical aptitude: mount the aluminum body to the firewall or inner fender panel using standard fasteners, then thread your NPT-compatible fittings into both ports. Verify all connections are hand-tight before full system pressure testing to ensure leak-free operation.