the ac/radiator is kinda exposed on the civic. So I used aluminum mesh to back up the openings. I opened up the faux rear vents and used the same mesh behind those. Looks good, I don’t think it helps anything. (Don’t mind the dirt, been getting a lot of rain, and I did a long drive yesterday)
I cut the slots in the Intake hole, they actually block half of the opening. Below this hole is a splash guard that I cut out, now there is a pretty open shot into the air box. I monitored before and after iat, it dropped average temps down. Hardly gets over 10*f over ambient. Cools down from heat soak quicker too.
I had a rodent problem. They had chewed some rubber and made a nest on the inner fender liner insulation. I wrapped all the exposed wires that i could get to with Honda’s spicy rodent tape and I spray the peppermint repellent around the engine bay every couple days. So far I haven’t seen a return. I hate rodents, and rust.