I just noticed today that my 4.6 has a black exhaust trim around the bumper cut outs, and I noticed my dad's 4.6 dosent? I also noticed on the 4.6/4.8 BMW brochures that its not in any of pics either. Its just a simple clip in trim. How many of you guys have it? I looked up the BMW parts system and it says its a HEAT SHIELD. Take a look here, its number 15 on the diagram.