Good morning, I am the new owner of a 2007 GT. I assume car is stock but the exhaust does sound a bit aggressive. Do not know if that is stock or not. Car runs great on highway. Two days after getting car, driving in terrible stop and go traffic, wrench appeared and car depowered, ultimately dying. I dont recall the exact codes that came up at that time, but they led me to check intake for air leaks, dirty maf, and vacuum leaks, along with dirty throttle body or dirty air filter. All those...

p2104, p2111, p0446, p0507,