Prevents voltage leaks where coil voltage needs to pass through the firewall.
To prevent voltage leaks in passenger compartment mounted coil installations, MSD designed the Firewall Feed-Thru. Molded from rynite, a high strength dielectric material. This part is absolutely the best way to route spark plug wire through the firewall.
This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.
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