[masd79]

Can anyone explain why an Xm sounds better than the m5? Same setup, isn’t it?

[Moewron]

Originally Posted by masd79

Can anyone explain why an Xm sounds better than the m5? Same setup, isn’t it?

It may be because you're comparing a US-spec XM with Euro spec M5s that have extra filters on the exhaust to meet emissions requirements.

[masd79]

Originally Posted by Moewron

It may be because you're comparing a US-spec XM with Euro spec M5s that have extra filters on the exhaust to meet emissions requirements.

I think they revved one here at one of the launches, it did not sound very good at all and my brothers Xm sound pretty dang good with a decent v8 sound

[ctelimad]

We dont have videos of the M5 sound US specced so you can not compare to XM

[Moewron]

Originally Posted by masd79

I think they revved one here at one of the launches, it did not sound very good at all and my brothers Xm sound pretty dang good with a decent v8 sound

It was still the European spec cars they were demoing at Pebble Beach etc. a few months ago.

[ctelimad]

To be honest for a european specced car and from the reviews it sounds good and loud enough with bangs and pops
I assume a US specced car will sound much better and louder

[Remigijus]

Missing depth as in XM, but overall not too bad. And EU spec

https://www.youtube.com/shorts/J-KlVA36i_c

[masd79]

Originally Posted by ctelimad

To be honest for a european specced car and from the reviews it sounds good and loud enough with bangs and pops
I assume a US specced car will sound much better and louder

Good to know they were euro specs they were revving here.

[Moewron]

Originally Posted by Remigijus

Missing depth as in XM, but overall not too bad. And EU spec

https://www.youtube.com/shorts/J-KlVA36i_c

I once watched a youtube video on my phone of a crazy expensive Bang and Oluf. stereo system. It didn't sound that good to me.

[Remigijus]

Originally Posted by Moewron

I once watched a youtube video on my phone of a crazy expensive Bang and Oluf. stereo system. It didn't sound that good to me.

Haha, laughing my ass off. XM sound in reality is not that good as S63. And M5 is exactly the same

[ctelimad]

A us spec car review

[masd79]

Originally Posted by Remigijus

Haha, laughing my ass off. XM sound in reality is not that good as S63. And M5 is exactly the same

But you can hear its unique rumble when it’s a Half a mile away at normal acceleration. It’s not about comparison, and yes s63 still better but XM is the first recent M that actually sounds deep and relatively loud. Question still remains, is the m5 going to be the same here in the us? The only reasonable answer given so far was that no one has heard an American spec m5 yet so we don’t know…

[DocWeatherington]

Originally Posted by masd79

Can anyone explain why an Xm sounds better than the m5? Same setup, isn’t it?

It's same powertain with different software modifications ...but different exhaust and lengths. With that you need to wait to compare and US spec XM vs M5. However, due to plumbing they won't ever sound the same. Never mind a OPF Euro vs non OPF and or country specific exhaust sound laws.

[DocWeatherington]

Originally Posted by masd79

But you can hear its unique rumble when it’s a Half a mile away at normal acceleration. It’s not about comparison, and yes s63 still better but XM is the first recent M that actually sounds deep and relatively loud. Question still remains, is the m5 going to be the same here in the us? The only reasonable answer given so far was that no one has heard an American spec m5 yet so we don’t know…

After market normally will improve upon it plus some coding of the flaps, and maybe some change to air fuel ratios/ unburnt fuel dumps.

[Remigijus]

S68 is not a bad sounding engine, but imo is missing that imperfect, more deeper rumble.

Btw, Akrapovic exaust sounds even in my phone (as someone mentioned) pretty good.

[ctelimad]

Originally Posted by masd79

But you can hear its unique rumble when it’s a Half a mile away at normal acceleration. It’s not about comparison, and yes s63 still better but XM is the first recent M that actually sounds deep and relatively loud. Question still remains, is the m5 going to be the same here in the us? The only reasonable answer given so far was that no one has heard an American spec m5 yet so we don’t know…

My M8 sounds deep like the XM if not better and for sure better/deeper then the M5 f90

[EUPremier]

If one were to swap the stock G90 exhaust for Akrapovic, does it void warranty?
Asking for a friend!

[masd79]

Originally Posted by ctelimad

My M8 sounds deep like the XM if not better and for sure better/deeper then the M5 f90

Maybe my brothers Xm came from the factory without cats… lol..

[ctelimad]

Originally Posted by masd79

Maybe my brothers Xm came from the factory without cats… lol..

Lol
I think the pipe length and shape affects the overall sound (deeper or not) even if same engine you may still have variations

[Crazy1323]

Originally Posted by EUPremier

If one were to swap the stock G90 exhaust for Akrapovic, does it void warranty?
Asking for a friend!

I don’t think we have seen their product offerings yet, we can assume something similar to their XM offerings will be available. The slip-on exhaust that just replaces the very back portion of the exhaust (rear axle back) shouldn’t cause a problem. On a Euro car I wouldn’t want to mess with anything forward of the OPF/GPF though.

Typically, at least in the US, people have been fine with modifying the exhaust downstream of the last emission device. That would be the catalytic converters in the US, and the OPF/GPF for Euro cars.

[r33_RGSport]

Originally Posted by Remigijus

S68 is not a bad sounding engine, but imo is missing that imperfect, more deeper rumble.

Btw, Akrapovic exaust sounds even in my phone (as someone mentioned) pretty good.

Akrapovic on XM does sound good indeed.

https://www.instagram.com/reel/DABT6..._web_copy_link

[Remigijus]

US spec sound: