[indergill]

Originally Posted by rednose

When you say exhaust sound, do you mean inside the car or outside?

If the sound is just for you you may be able to code it.

Here is mine coded with the F80 S55

For speaker upgrades have a look at bimmertech

https://www.bimmer-tech.net/speakers...ifier-for-bmw/

Just for outside, about speakers just want to change them as they're making rattling noise. Don't want to go deep with amp and speakers for better sound quality.