Straight pipe, muffler delete or aftermarket muffler?

[dakotaa]

Hello
Just wanted to ask whether I should straight pipe, remove the muffler or get an aftermarket one. I've seen that apparently straight pipes don't sound good but I just want to get a second opinion, as it is relatively cheap to do. My Z4 is a sDrive 23i and I want a bit more volume.
Thanks

[B21]

You can butcher the silencer box or replace it with a non oem version …any straight pipe would be way in excess of acceptable noise..to anyone..

[Mr Tidy]

I've heard an E85 with the same N52 engine that had been straight-piped and it was much louder than I could put up with. It sounded like it would be really wearing on a longer journey.

I'd either get a different back-box or have the original modified.

[Silverstar]

How do they modify the original back box and can it be seen from the under the car that it has been manipulated? Sounds like a cheaper option than going for an aftermarket back box which can set you back anywhere from around £600 to £1200.

[B21]

How do they modify the original back box and can it be seen from the under the car that it has been manipulated? Sounds like a cheaper option than going for an aftermarket back box which can set you back anywhere from around £600 to £1200.

They dismount it, cut the top open..butcher the internals to suit clients tastes..then re weld it up..once mounted its impossible to see the mod externally…subject to no probe cameras..