Nice work!
Based on your wheel skirt photos, if I try it I think I'll make the skirts longer by maybe 8-10 inches, so the bottom forward corner ends up further forward. Then maybe the skirts leading corner can hug the molding and the body there.
I did a WAI. There's no tube in mine; it sucks in air heated by the rad and whatever heat comes over from the exhaust system. ScanGauge shows the intake temps are about 30 deg. F above ambient outside temps. Same filter box as on your car.

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Check your tire pressure - keep it up !!
We've learned that diet has a closer relationship to cancer than we ever thought. Please see this Wikipedia article on
The China Study.
Driving Lean Burn '97 Civic HX, lotsa mods by now! '89 Volvo 240 is semi-retired. I did love that car though!