Manifold/header/muffler/tail Pipe problems of the 2010 Mitsubishi Lancer

Hello NHTSA, I have a 2011 Mitsubishi Lancer ralliart sportback. I have just came across a crack in my exhaust manifold which is causing exhaust fumes to enter the cabin of the vehicle if my windows are up. I don't seem to be the only person with this type of car/engine that has a crack in the exhaust manifold. My car is not modified in any way that effects the performance that could cause such a crack to happen. This also appears to be the case for several thousand others. I have brought my vehicle into Mitsubishi who has confirmed the crack and has not been able to explain to me why or how this happened. I have been told from my local Mitsubishi dealership and the next closest one that they can replace the manifold for $2k. I have contacted Mitsubishi USA who has told me the exhaust manifold shouldn't crack and has gotten no other complaints about the issue. There are several thousand posts with photo proof that I am not alone with this issue. Mitsubishi has had a similar issue with their all wheel drive pump where there was a defect of some sort and extended the warranty to 100,000k. I have already had my all wheel drive pump fail and replaced under that warranty. When I spoke with Mitsubishi USA a supervisor named jennifer informed me to put in a complaint here. Since Mitsubishi has not had any internal testing on the manifold going this route may speed the process up. This issue is quite serious since with the crack - photo attached: it causes carbon monoxide to enter the cabin if the windows are up or if the ac is on and the car is at a stand still. Thank you for your time.