Re: Air intake cover
The answers are, unnoticeable and no. I like to build my own CAI's. When I first got my WK GCO I removed the big, ugly silencer like you did and put my own setup between the throttle body and the airbox. I also removed the "cup" in the bottom of the airbox and hooked a 3 in. aluminum duct to it and ran it out by the grill. This was all temporary until I had time to do one right. I just recently retrofitted an LX (Charger, Magnum, 300C) SRT airbox and air tube that I had laying around from when I built the CAI for my Hemi Magnum. The LX SRT airbox is on the other side (where the WK battery is located), so I had redo the mounts and cut and recontour the airbox bottom. I also drilled another 3 in. hole in the front of the box. My air intake into the box is now one opening about 7 X 7 in. and the 3 in. I am now delighted with this setup and it looks stock. Here are pictures of my Magnum, the first WK one and the final one.
When building one of these, IMO you want to have more than one air inlet, one being as high as possible (to keep from hydrolocking), and you want it to draw all ambient air, not under hood air. The tube should not be a heat conductor (metal) and should have the best heat insulating properties possible. The one on my Magnum is a double walled unit with an airspace in between the walls....inside tube is a fiber tube and outside is ventilated aluminum. The WK one is the stock SRT rubber tube that goes from 4 in. down to 3 in. at the throttle body. IAT's run at ambient on the highway with both setups.