Bmw m140i exhaust

[Petrol Joe24]

I have a 2019 m140 want some more sound from the car but don’t want to pay for a full exhaust system what are my best options with it being a ppf car will it void my bmw warranty getting something as simple as a res delete?

[Court_S]

You could try PCW.

He’ll just mod the back box, replacing the perforated pipe with solid pipe. It’s made my 335i quite a lot louder.