Exhaust smell in cabin Escalade 2021

[BlaineBug]

This. I have the cold air performance intake and the exhaust installed by the dealer. They are a waste of money.

What's the factory exhaust "upgrade?"

 

[maddocmatt]

Here is the post from gm authority. I can’t find the original piece. I have the performance lpo which was a cat back exhaust system with a kn cold air intake

https://gmauthority.com/blog/2021/05/2021-cadillac-escalade-cat-back-performance-exhaust-not-available/