So my increased emissions has been on for a few months now. When I took it to the dealer they quoted me around 16k for the job. They said the entire exhaust system was bad? Is that even possible? Has anyone ever heard of this or know any approach/ideas I should take to getting rid of this light. I've cleared the light but it'll come back on after 15 min of driving. Please help I miss driving the beast. It's been parked four months. It's a 2006 with 74k miles.