Yes, it should create some additional airflow to "suck" some of the engine heat out of the engine bay.
My car neither has side transmission intake nor the undertray dome, it has flat underbody. I believe that later type of undertrayes with domes were the same, whether the car had side transmission intakes or not.My car doesn't have this side intake (if it's the one I assume you mean, on the outside of the car just behind the left side door, down low), so I wonder what is the function of my undertray dome. Maybe, it still enables air out from the engine comparment, perhaps by creating low pressure from outside air flow.
Forget the understeer, it’s the oversteer that becomes ever-so-more predictable and controllable with the uniballs and, I assume, the new arms.In preparation for the “Race” version rear arms, I’ve decided to keep my aluminium pan intact, and make a more suitable LIGHTER substitute.
The parts you need to remove for the arms leaves essentially a rectangle so I bought a rectangle of Titanium for £175 on eBay and I’ll just make holes as required and job done.
I am so excited to see how these arms work with the Wavetrack diff and other mods I’m doing right now.
I say clean/heat coloured finish FTW. That’s a unique selling point right there.
Can’t wait to feel understeer happen gradually rather than it spring it on you. It’s fun and good for the heart but I’d prefer more progressive.