Weird burning smell coming from exhaust

[LethalHemii]

Hello there I have a 2019 ram 1500 sport and have a borla atak catback exhaust. Since last year august I have noticed a weird burning smell that comes after I hit the gas and do a pull on my ram. I got my exhaust in November 2021 but noticed the smell august 2022. I researched a bit and found it it could be the cats but I haven’t gotten any check engine light or any other warnings. The smell only comes when I hit the gas and do a pull. Normal cruising or idle start up the truck is fine and jus normal exhaust fumes. I gotten it checked out by the dealer during a service and they said they didn’t look into it in depth but overall they said it “looked” fine. Any idea of what it could be and if I should be worried.

 

[SpeedyV]

https://www.jdpower.com/cars/shopping-guides/why-does-my-car-smell-like-rotten-eggs