1983-93 Mustang split face grommet

Custom fit, 6061 billet aluminum split face grommet to utilize factory opening in firewall of 83-93 Mustangs. Grommet holes are designed to be used with Holley EFI engine, power, and transmission harnesses.

3 hole variant grommets have: .5", 1.0625", and .7" holes

2 hole variant grommets have: 1.0625", and .7" holes

To install these, 4 - 3/16" holes will need to be drilled to match the threaded backing plate to "sandwich" the firewall. This allows maximum utilization of the factory opening to fit an already snug hole with the large harness connectors and no need to depin any connections.

Proudly made in USA!