Can't tell you how much it helps to have the Plastic Soldering Iron while doing this. Thanks for the heads up on that TRK! I bought a used Porsche tow hook cover, trimmed up the inside a bit so the inside would fit into the hole and used the soldering iron to melt it to the hole in the air box, sanded and looks great!
Originally bought the tow hook cover for the bumper I was going to have installed. That didn't work out, but to cover got used.
One like this, but I got it for much less.
http://www.ebay.com/itm/Porsche-911-505-703-00-front-bumper-cover-tow-hook-cover-cover-eye-/121503674097?pt=Motors_Car_Truck_Parts_Accessories&hash=item1c4a2eeef1&vxp=mtr