EFI 24x™ 1985-1992 Camaro/Firebird

Plug-and-Play harness assemblies for GM 12200411 PCM and Holley HP ECU. These harnesses are built to order and provide easy integration into your F-Body.

Modern ultrasonic splicing allows us to exceed the build quality of the original GM harnesses. Hand-build with production crimp tools and genuine OE connectors. We've gone even further to design and manufacture a replacement hardshell grommet for the harness to enter the vehicle.

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