[midnight.240i]

Been thinking about getting my center section of the exhaust removed so its a straight pipe flowing into a twin pipe from the downpipe to the back box.

I've been to a reputable company who did the inspection and couldn't guarantee the car wouldn't go into limp mode because of the change in exhaust pressure etc. and the car being basically brand new. its a 2024 240i xdrive with all the new interior, new software...

Has anyone done this yet? did they have any issues? I don't want to map the car or do anything else really power wise just wanting a bit more noise...

UK spec car also for info

Any help is much appreciated

Thanks

[Pentland]

Don’t know the answer to your question but that exhaust part is described as “ RP Gas.particulate Filter W.front Pipe”. *If* it contains the filter, removing it is illegal.

My only question would be why?

[MPR]

Originally Posted by Pentland

Don’t know the answer to your question but that exhaust part is described as “ RP Gas.particulate Filter W.front Pipe”. *If* it contains the filter, removing it is illegal.

My only question would be why?

Taking a shot in the dark here but my guess is sound + flow improvement.

[midnight.240i]

Originally Posted by MPR

Taking a shot in the dark here but my guess is sound + flow improvement.

Exactly that mate, Just want to make sure the car isn't going to go into limp mode if i take the centre section out of the exhaust as marked in the drawing above?

I know some people have tried using a an mil sensor to trick the ecu into thinking it still there but have seen some other places can still make the car go into limp mode without a map

[NKiss]

interested in seeing the follow up!

[BIGW0RM]

Sounds like a typically custom made midpipe to me. Which in the M2, it will not throw a code. So I dont see why it would on a M240I but dont take my word for it. I have no 240i experience.

[Pentland]

Originally Posted by MPR

Taking a shot in the dark here but my guess is sound + flow improvement.

You’ve missed my point.
Does this part have the GPF? If so, it’s illegal to remove so why do it?

[MPR]

Originally Posted by Pentland

You’ve missed my point.
Does this part have the GPF? If so, it’s illegal to remove so why do it?

When have laws ever stopped someone from doing mods? I thought you were truly after his intent.

[Pentland]

Originally Posted by MPR

When have laws ever stopped someone from doing mods? I thought you were truly after his intent.

It may not stop him doing the mod but if the GPF is removed, he won’t pass his MoT. He’ll also be uninsured as he won’t be driving a roadworthy vehicle.