Search of the Ultimate Exhaust setup for the M2C

drp087 · 05-02-2022, 12:20 AM

So after much research and comparisons, with the help of several members and threads on the topic, I ended up ordering the AA Resonated EL Midpipe with the AA Axleback.

- Exhaust Choice
I wanted an exhaust that fixed the whining S55, slightly louder but not obnoxious (Daily), and hopefully with some character at the lower RPM's. I passed on the single AA midpipe as I didn't think it would fix the whining sound (just louder and deeper), and also passed on the EL Non-resonated due to the raspiness and not as clean sound.
As for the axle-back, top contenders were AA, Remus Race, and MPE. Passed on Remus Sport as I don't think its big enough of a change in overall exhaust volume. Decided on AA mostly for same brand and price compared to Remus Race and MPE.

- Initial Impressions
As expected, the whining sounds are gone, instead there is a howl at 3.5K that sings deeper and louder

Downside is that the burbles in Sport+ got ridiculous- coded that out asap. The volume is only about 1.4 x stock volume. If you are looking for LOUD, this is not the setup for you. There is no drone, some occasional metallic rasp but it's fine.

- Overall satisfaction after a few weeks
(8/10) It definitely fixed the issues, and I feel like this setup should have been the way the M2C should have come from the factory. As in the video below, it's very unnoticeable in efficient mode, but during aggressive driving in Sport+ you can really hear the howling in the higher RPM's.
What lets me down is the lower RPM's. Especially from inside the car, there really isn't much going on until 3K+, just a low humming- dare I say it even sounds similar to ASD (which I had coded out immediately after I got the car). I was looking for some more mechanical character in the lower RPMS.

- My continued search
Should I try out the Remus Race? or MPE?
Maybe even Downpipes?
Or is this the best S55 can get?

Any feedback from you exhaust gurus welcome!

mike@x-ph.com · 05-02-2022, 10:06 AM

Catted downpipes will increase the sound by another 20% or so including the lower RPM. That should the remaining issues

echoshotz · 05-02-2022, 10:32 AM

Quote:

Originally Posted by mike@x-ph.com

Catted downpipes will increase the sound by another 20% or so including the lower RPM. That should the remaining issues

Do you suggest a certain catted DP for use with the EL unresonated?

mike@x-ph.com · 05-02-2022, 10:51 AM

Quote:

Originally Posted by echoshotz

Do you suggest a certain catted DP for use with the EL unresonated?

Soundwise it's very similar no matter which brand you choose, if the check engine light is a concern, I recommend the active autowerke

other options will trigger the code

Got f1? · 05-02-2022, 11:39 AM

Quote:

Originally Posted by drp087

So after much research and comparisons, with the help of several members and threads on the topic, I ended up ordering the AA Resonated EL Midpipe with the AA Axleback.

- Exhaust Choice
I wanted an exhaust that fixed the whining S55, slightly louder but not obnoxious (Daily), and hopefully with some character at the lower RPM's. I passed on the single AA midpipe as I didn't think it would fix the whining sound (just louder and deeper), and also passed on the EL Non-resonated due to the raspiness and not as clean sound.
As for the axle-back, top contenders were AA, Remus Race, and MPE. Passed on Remus Sport as I don't think its big enough of a change in overall exhaust volume. Decided on AA mostly for same brand and price compared to Remus Race and MPE.

- Initial Impressions
As expected, the whining sounds are gone, instead there is a howl at 3.5K that sings deeper and louder

Downside is that the burbles in Sport+ got ridiculous- coded that out asap. The volume is only about 1.4 x stock volume. If you are looking for LOUD, this is not the setup for you. There is no drone, some occasional metallic rasp but it's fine.

- Overall satisfaction after a few weeks
(8/10) It definitely fixed the issues, and I feel like this setup should have been the way the M2C should have come from the factory. As in the video below, it's very unnoticeable in efficient mode, but during aggressive driving in Sport+ you can really hear the howling in the higher RPM's.
What lets me down is the lower RPM's. Especially from inside the car, there really isn't much going on until 3K+, just a low humming- dare I say it even sounds similar to ASD (which I had coded out immediately after I got the car). I was looking for some more mechanical character in the lower RPMS.

- My continued search
Should I try out the Remus Race? or MPE?
Maybe even Downpipes?
Or is this the best S55 can get?

Any feedback from you exhaust gurus welcome!

I’d say it sounds pretty good! Do you have the piped in sound disabled? I have AA single mid-pipe and Remus Race rear. It is pretty loud. Sounds awesome but on road, the noise is annoying when RPM is constant 3k+.

Actually considering swapping to something a bit quieter. Maybe trading rear section.

drp087 · 05-02-2022, 12:27 PM

Quote:

Originally Posted by Got f1?

I’d say it sounds pretty good! Do you have the piped in sound disabled? I have AA single mid-pipe and Remus Race rear. It is pretty loud. Sounds awesome but on road, the noise is annoying when RPM is constant 3k+.

Actually considering swapping to something a bit quieter. Maybe trading rear section.

Thanks! I agree this setup is good for a daily, but you just keep wanting more lol. I have ASD disabled, maybe that might help out for you as well? Also consider trading the single mid instead- from what I know the single is louder than the resonated EL.

NE_M2C · 05-02-2022, 02:06 PM

I would love to hear a AA Resonated EL + Remus Race set up to compare this with.

PHX102 · 05-02-2022, 03:58 PM

Quote:

Originally Posted by Got f1?

Quote:

Originally Posted by drp087

So after much research and comparisons, with the help of several members and threads on the topic, I ended up ordering the AA Resonated EL Midpipe with the AA Axleback.

- Exhaust Choice
I wanted an exhaust that fixed the whining S55, slightly louder but not obnoxious (Daily), and hopefully with some character at the lower RPM's. I passed on the single AA midpipe as I didn't think it would fix the whining sound (just louder and deeper), and also passed on the EL Non-resonated due to the raspiness and not as clean sound.
As for the axle-back, top contenders were AA, Remus Race, and MPE. Passed on Remus Sport as I don't think its big enough of a change in overall exhaust volume. Decided on AA mostly for same brand and price compared to Remus Race and MPE.

- Initial Impressions
As expected, the whining sounds are gone, instead there is a howl at 3.5K that sings deeper and louder

Downside is that the burbles in Sport+ got ridiculous- coded that out asap. The volume is only about 1.4 x stock volume. If you are looking for LOUD, this is not the setup for you. There is no drone, some occasional metallic rasp but it's fine.

- Overall satisfaction after a few weeks
(8/10) It definitely fixed the issues, and I feel like this setup should have been the way the M2C should have come from the factory. As in the video below, it's very unnoticeable in efficient mode, but during aggressive driving in Sport+ you can really hear the howling in the higher RPM's.
What lets me down is the lower RPM's. Especially from inside the car, there really isn't much going on until 3K+, just a low humming- dare I say it even sounds similar to ASD (which I had coded out immediately after I got the car). I was looking for some more mechanical character in the lower RPMS.

- My continued search
Should I try out the Remus Race? or MPE?
Maybe even Downpipes?
Or is this the best S55 can get?

Any feedback from you exhaust gurus welcome!

I’d say it sounds pretty good! Do you have the piped in sound disabled? I have AA single mid-pipe and Remus Race rear. It is pretty loud. Sounds awesome but on road, the noise is annoying when RPM is constant 3k+.

Actually considering swapping to something a bit quieter. Maybe trading rear section.

The race exhaust is still valved isn't it? Is it still to much noise when in comfort mode?

Got f1? · 05-02-2022, 04:58 PM

Quote:

Originally Posted by PHX102

The race exhaust is still valved isn't it? Is it still to much noise when in comfort mode?

It used stock vale’s and I have a controller. Even closed it is loud while driving. Valves closed make it quieter at idle or sub-2.5k revs or so. Small drone/resonance right at 3k but not bad.

Sounds awesome but it is loud.

drp087 · 05-02-2022, 10:51 PM

Quote:

Originally Posted by NE_M2C

I would love to hear a AA Resonated EL + Remus Race set up to compare this with.

There was another thread here recently
https://f87.bimmerpost.com/forums/sh....php?t=1912045

Can't really tell from the video but it does sound a little louder, not sure if it changes the tone at all, low RPM's sound similar?

stefan · 05-03-2022, 12:16 PM

People sleep on the Valvetronic setup. Fitment is kind of bad though but apparently the guys have fixed it in new models. Upside--no goofy midpipe that achieves EL by unnecessary bends. I would say it's a good option if you have stock DPs but definitely wouldn't do it with high flow cats.

NE_M2C · 05-03-2022, 03:27 PM

Quote:

Originally Posted by drp087

There was another thread here recently
https://f87.bimmerpost.com/forums/sh....php?t=1912045

Can't really tell from the video but it does sound a little louder, not sure if it changes the tone at all, low RPM's sound similar?

Ah, I didn't realize that was resonated. It definitely sounds louder during the standing revs and maybe a bit during drive by. Tone seems slightly different - but it can be so tough to tell via video, honestly.

drp087 · 05-04-2022, 02:50 AM

I think this video is about the best an M2 can sound, but again, this is an M2CS. From what I searched M2 CS seems to have a slightly different note than the M2C Exhaust from the factory, maybe the tune?

protamine · 05-10-2022, 05:58 PM

I think it sounds excellent. Commenting to bookmark for later.

chris719 · 05-11-2022, 05:29 PM

Does anyone have clips of just an axle-back / slip-on for M2C? I don't want anything super loud and not sure I want a midpipe.

atruong247 · 05-12-2022, 11:07 PM

mpe and call it a day. I regret not going that route.

pawelczyk7 · 05-13-2022, 12:53 PM

Quote:

Originally Posted by atruong247

mpe and call it a day. I regret not going that route.

I did MPE 1st and was a nice improvement over stock... i was still looking for a bit more so added non resonated AA single mid-pipe and think it took it up another level with volume and tone.. and lastly after hearing the higher pitch tone of the EL mid-pipe on vids i replaced the Single with AA EL non resonated mid-pipe ( so personal preference ) .. and survey says i can finally say this car now sounds freaking great ... from 4k up with EL and MPE it is magic..... People cant say the N55 M2 sounds soo much better than the S55... this set up (could use any back section with single or El mid-pipe) and it transforms the car..

pawelczyk7 · 05-13-2022, 12:54 PM

Quote: