This is the CAI that I made. I also ran a tube up from the left brake duct + it still get air from behind the grill. Got hold of a indoor / outdoor thermometer 70C max output run round town with it in my engine bay, got readings of 70c + in the engine bay after a lot of stop starting at lights. Put one sensor inside the shield of the CAI fitted the other sensor outside, temp increased at the lights but within a km was back down to outside temp. But once I figure out what to line the inside of the shield with hopefully the increase temp at idle will be reduced.