Undo the lower panel mod?

[JimmyJazz]

Either way your brain will implode and reach critical mass No style points for a patch-job .

[GeorgeInNePa]

You might also consider using that hole to funnel air to a trans cooler, if you are using a higher stall converter.

That way you can use the front of the car for the intercooler.

[wreckwriter]

I just left mine open, more air into the engine compartment is a good thing.