To the point, I need a new muffler for my 04 ralliart and other than a dealer, I cannot find anyone of the major companies (auto zone, napas etc) that sells one. I'm not looking for a $650 cat back, I just need to get the car legal again. I know the OEM PN is MN153249 and the 2.0L is MN153250 and I honestly can see the difference from pics online. I saw someone that says they bought a muffler for the 2.0 and it fit their 2004 ralliart. Are the two exhausts interchangeable? Are there any other OEM replacement brands I can look into?

Thanks