for Holley Terminator X Max Firewall Pass Through Aluminum Raw Bracket Wiring Harness Split Bulkhead -Eliminates Firewall Grommet

The quality of the grommet seems good and it looks great, it's just a lot smaller than expected.I think it would work well for older vehicles or anything that doesn't have much wiring.I'm not sure it's quiet enough for something like a GM LS engine swap with a factory style harness where the PCM is inside the car. Even if you split the harness up into the two holes you may be pushing the limits for this one grommet. It all depends on how tight you are willing to run the wires.I Hope My Review And Pictures Were Helpful To You !!