Hello! Just bought a 2013 Expedition Limited and I have a question. I bought it from a local Ford dealer. It is a Certified Used Car and I have the service records. It was sold new by a different local dealer. The vehicle obviously has a KN CAI system. It also has at least an aftermarket chrome exhaust tip, maybe more. That's what I'm trying to find out. The exhaust has a very mellow rumble, nothing obnoxious. I can't tell if its factory or not. The records indicated that the original selling dealer replaced the air filter and exhaust prior to delivery. I called them and their records only show that the parts were supplied by the owner. Does anyone recognize this exhaust system? Is it OEM or aftermarket?