the ACA let's warm air in from the manifold when the vehicle first starts and then closes once she warms up. That being said I've seen Samurai's with the shield over the header removed where the hot air comes from for the ACA and also seem ten with cold air intakes which eliminates the ACA and also gets rid of that long ugly dryer tubing thing so can I just remove the shield the dryer duct and ACA all together or is there more modifications involved?

ok I found out...You can remove this whole system no problem...except me because I am stationed in the state of california and cannot due to their wonderful emission laws and smog regulations. although some of these smog shops are pretty shady and im sure for the right price one of them will pass me when the time comes:)

I think that is more for carb icing that for cold start, but either way
you need to have it to pass smog, it's just ugly

I think that is more for carb icing that for cold start

Thats right, we get lots of problems over here each winter with Sammys that have a bad or missing hot air feed.