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      04-27-2021, 11:46 PM   #1
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Dedicated Aftermarket Exhaust Thread

Did a search and didn't see a comprehensive thread to discuss all things exhausts. Lets consolidate here and talk options, plans, experiences and reviews.

What exhausts did you go with? Any issues? Would go a different route? Haven't pulled the trigger but have a plan? Share it here.

Have links to other threads you think are helpful? Post it here and I'll update this list.

Helpful links I've found.

M Performance Exhaust Fitment

Remus Exhaust

Stock Exhaust Note Discussion

M Performance Exhaust Fitted. First Impressions
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      04-28-2021, 02:57 AM   #2
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Very appreciative of the thread! I don't particularly like the way the akrapovic sounds (in the videos anyways) but I'm madly in love with akrapovic and I'm leaning towards throwing that on. I've noticed that the akrapovic website says you have to do cutting of stock pipes and tune the car itself though which is worrisome as I really don't want to mess with the warranty.

If anyone has an akra on I'd love to hear what you think of it and if you really had to get a tune to avoid a CEL.
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      04-28-2021, 06:49 AM   #3
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Dedicated Aftermarket Exhaust Thread

I've gone with the one that came with it. Beautiful sound. Love it. Loud when it needs to be when driving. Lovely note. No synthetic pops and crackles. My only complaint is the stupidly loud startup but that only lasts for a minute. I can live with that. Very satisfied overall.
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      04-28-2021, 11:15 AM   #4
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I installed the MPE. Overpriced, but this is the exhaust that should have come on the car. Burger Tuning device to keep the flaps open all the time and I love it.
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      04-28-2021, 11:29 AM   #5
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Originally Posted by ZL9M2 View Post
I installed the MPE. Overpriced, but this is the exhaust that should have come on the car. Burger Tuning device to keep the flaps open all the time and I love it.
I’m debating the MPE or just leaving it stock. It would be great if someone with the MPE on their CS could upload a video/sound clip.
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      04-28-2021, 12:04 PM   #6
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Thanks for creating this thread. When I get my new exhaust in May/June I will definitely post info here.
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      04-28-2021, 12:18 PM   #7
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Quote:
Originally Posted by Hydarnes View Post
Very appreciative of the thread! I don't particularly like the way the akrapovic sounds (in the videos anyways) but I'm madly in love with akrapovic and I'm leaning towards throwing that on. I've noticed that the akrapovic website says you have to do cutting of stock pipes and tune the car itself though which is worrisome as I really don't want to mess with the warranty.

If anyone has an akra on I'd love to hear what you think of it and if you really had to get a tune to avoid a CEL.
If you get the midpipe you don't have to do any cutting. I kind of agree with you on the sound on the videos with the M2C I've watched. It sounds less refined right? More grumbably. I do love the design and craftsmanship though.

Where did you see tuning was required? I did not see that on the website.
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      04-28-2021, 01:52 PM   #8
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Have Akra Evo (includes mid pipe), no tuning required and no CEL. Better sound, better look, weight savings and deletion of secondary cats are all advantages of Akra over stock system. The latter two are advantages over most other after market exhaust systems.
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      04-28-2021, 02:18 PM   #9
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I had full Akrap on the M3 and was great but now for the CS just like to have something special and i really like the idea of AA Equal mid pipe so i have ordered it. Just waiting more then 6 weeks now and should arrive any time now - can not wait :-) My friend have full Akrap on the M2CS (mid pipe and slip on) it is nice sound but still something missing. I think Akrap sound much better on the other cars brands but the M cars not (sorry)...
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      04-28-2021, 02:29 PM   #10
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I had full Akrap on the M3 and was great but now for the CS just like to have something special and i really like the idea of AA Equal mid pipe so i have ordered it. Just waiting more then 6 weeks now and should arrive any time now - can not wait :-) My friend have full Akrap on the M2CS (mid pipe and slip on) it is nice sound but still something missing. I think Akrap sound much better on the other cars brands but the M cars not (sorry)...
I feel like the uneven length exhaust length is the identity of the M2's sound. It makes it sound raw and feral. It matches the driving characteristics of the chassis.
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      04-28-2021, 02:56 PM   #11
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Quote:
Originally Posted by michaeldorian View Post
If you get the midpipe you don't have to do any cutting. I kind of agree with you on the sound on the videos with the M2C I've watched. It sounds less refined right? More grumbably. I do love the design and craftsmanship though.

Where did you see tuning was required? I did not see that on the website.
It is noted on their website but not required. I've spoken to several local shops and they all said no. DP's different story.
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      04-28-2021, 03:23 PM   #12
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You don't need tuning if you are running stock downpipes.

I ordered AA EL midpipe and Remus Sport axleback back in January. I got the AA EL a couple weeks later, but the Remus was on back order. Just the other day (3 months later), I get an email saying that Remus USA is no longer the distributor for Remus products and my order has been delayed indefinitely.

I ended up ordering an Akrapovic to pair with the AA EL, and hope that the sound is good enough.

My point... REMUS is not an option in the USA at this time. Don't bother.
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      04-28-2021, 03:29 PM   #13
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Originally Posted by LukasM2CS View Post
My friend have full Akrap on the M2CS (mid pipe and slip on) it is nice sound but still something missing. I think Akrap sound much better on the other cars brands but the M cars not (sorry)...
Do you think it sounds better than stock though? Or worse in general? What are you expecting from just the AA midpipe?
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      04-28-2021, 04:34 PM   #14
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Quote:
Originally Posted by yaymitch View Post
Have Akra Evo (includes mid pipe), no tuning required and no CEL. Better sound, better look, weight savings and deletion of secondary cats are all advantages of Akra over stock system. The latter two are advantages over most other after market exhaust systems.
100% on this one...I've got the Akra Evo as well and totally love it. With the full system (from downpipes back) there is no cutting required and it's a super straight forward install. This should take less than two hours to install.

I prefer the Akra over the stock system in almost every situation...the only exception is the cold start with valves closed. Somehow on cold start it sounds more industrial than the stock system...although I wasn't a big fan of the cold start sound on the stock system either. In every other situation Akra wins hands down - at least in my book, but that's a matter of taste and preference. It's almost as docile as stock in efficient mode and is way louder under wot in sport+...I can leave my neighborhood in the morning without waking the neighbors and really open it up if I want to. And cruising on the highway I can forget it's there - zero drone.

As far as weight, looks and performance...it's absolutely no comparison vs the stock system. Workmanship is a work of art - I could be wrong but I think very few other exhaust systems come anywhere close on quality. Looks are once again subjective (to a degree), but to my eyes this is the best looking set up out there and it totally fixes the "diaper butt" or "udder" look of the stock system. It looks so good now. I had contemplated the MPE...but got turned off by the way it looks, still hangs waay too low for my liking.

And then you factor in a 40+ lbs weight savings and probably 10-15 bhp (mostly due to removal of mid cats)...the only real drawback is how pricey the thing is.
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      04-28-2021, 07:55 PM   #15
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Quote:
Originally Posted by homemade_f81 View Post
100% on this one...I've got the Akra Evo as well and totally love it. With the full system (from downpipes back) there is no cutting required and it's a super straight forward install. This should take less than two hours to install.

I prefer the Akra over the stock system in almost every situation...the only exception is the cold start with valves closed. Somehow on cold start it sounds more industrial than the stock system...although I wasn't a big fan of the cold start sound on the stock system either. In every other situation Akra wins hands down - at least in my book, but that's a matter of taste and preference. It's almost as docile as stock in efficient mode and is way louder under wot in sport+...I can leave my neighborhood in the morning without waking the neighbors and really open it up if I want to. And cruising on the highway I can forget it's there - zero drone.

As far as weight, looks and performance...it's absolutely no comparison vs the stock system. Workmanship is a work of art - I could be wrong but I think very few other exhaust systems come anywhere close on quality. Looks are once again subjective (to a degree), but to my eyes this is the best looking set up out there and it totally fixes the "diaper butt" or "udder" look of the stock system. It looks so good now. I had contemplated the MPE...but got turned off by the way it looks, still hangs waay too low for my liking.

And then you factor in a 40+ lbs weight savings and probably 10-15 bhp (mostly due to removal of mid cats)...the only real drawback is how pricey the thing is.
Got any video or sound clips?
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      04-29-2021, 06:26 AM   #16
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Quote:
Originally Posted by homemade_f81 View Post
Quote:
Originally Posted by yaymitch View Post
Have Akra Evo (includes mid pipe), no tuning required and no CEL. Better sound, better look, weight savings and deletion of secondary cats are all advantages of Akra over stock system. The latter two are advantages over most other after market exhaust systems.
100% on this one...I've got the Akra Evo as well and totally love it. With the full system (from downpipes back) there is no cutting required and it's a super straight forward install. This should take less than two hours to install.

I prefer the Akra over the stock system in almost every situation...the only exception is the cold start with valves closed. Somehow on cold start it sounds more industrial than the stock system...although I wasn't a big fan of the cold start sound on the stock system either. In every other situation Akra wins hands down - at least in my book, but that's a matter of taste and preference. It's almost as docile as stock in efficient mode and is way louder under wot in sport+...I can leave my neighborhood in the morning without waking the neighbors and really open it up if I want to. And cruising on the highway I can forget it's there - zero drone.

As far as weight, looks and performance...it's absolutely no comparison vs the stock system. Workmanship is a work of art - I could be wrong but I think very few other exhaust systems come anywhere close on quality. Looks are once again subjective (to a degree), but to my eyes this is the best looking set up out there and it totally fixes the "diaper butt" or "udder" look of the stock system. It looks so good now. I had contemplated the MPE...but got turned off by the way it looks, still hangs waay too low for my liking.

And then you factor in a 40+ lbs weight savings and probably 10-15 bhp (mostly due to removal of mid cats)...the only real drawback is how pricey the thing is.
I am curious if the car will pass emissions (sniffer) without the mid-cats or do you need to revert to stock?
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      04-29-2021, 09:49 AM   #17
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private message me your email and I can send a sound clip of the MPE on my CS. The file type is not supported - or able to be uploaded here. I have my '17 - N55 - with its MPE running and then start the CS so you can compare the two.
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      04-29-2021, 10:10 AM   #18
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Quote:
Originally Posted by M2forme View Post
Quote:
Originally Posted by homemade_f81 View Post
Quote:
Originally Posted by yaymitch View Post
Have Akra Evo (includes mid pipe), no tuning required and no CEL. Better sound, better look, weight savings and deletion of secondary cats are all advantages of Akra over stock system. The latter two are advantages over most other after market exhaust systems.
100% on this one...I've got the Akra Evo as well and totally love it. With the full system (from downpipes back) there is no cutting required and it's a super straight forward install. This should take less than two hours to install.

I prefer the Akra over the stock system in almost every situation...the only exception is the cold start with valves closed. Somehow on cold start it sounds more industrial than the stock system...although I wasn't a big fan of the cold start sound on the stock system either. In every other situation Akra wins hands down - at least in my book, but that's a matter of taste and preference. It's almost as docile as stock in efficient mode and is way louder under wot in sport+...I can leave my neighborhood in the morning without waking the neighbors and really open it up if I want to. And cruising on the highway I can forget it's there - zero drone.

As far as weight, looks and performance...it's absolutely no comparison vs the stock system. Workmanship is a work of art - I could be wrong but I think very few other exhaust systems come anywhere close on quality. Looks are once again subjective (to a degree), but to my eyes this is the best looking set up out there and it totally fixes the "diaper butt" or "udder" look of the stock system. It looks so good now. I had contemplated the MPE...but got turned off by the way it looks, still hangs waay too low for my liking.

And then you factor in a 40+ lbs weight savings and probably 10-15 bhp (mostly due to removal of mid cats)...the only real drawback is how pricey the thing is.
I am curious if the car will pass emissions (sniffer) without the mid-cats or do you need to revert to stock?
Had it on my F80 and it passed emissions.
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      04-29-2021, 11:42 AM   #19
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Quote:
Originally Posted by michaeldorian View Post
If you get the midpipe you don't have to do any cutting. I kind of agree with you on the sound on the videos with the M2C I've watched. It sounds less refined right? More grumbably. I do love the design and craftsmanship though.

Where did you see tuning was required? I did not see that on the website.
It seems I was wrong about the tune being required for the slip on! The website does however say it's required for the midpipe (link pipe?) addition. One saving grace may be that the sound just doesn't come through well on phone cameras. I don't think the M4 GTS sounds great in youtube videos but my friend has one and that thing sounds amazing in person. I might just bank on this being the case and go for it since the design/craftsmanship is excellent and I have a some sentimental value towards Akra.
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      04-29-2021, 11:46 AM   #20
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Quote:
Originally Posted by homemade_f81 View Post
100% on this one...I've got the Akra Evo as well and totally love it. With the full system (from downpipes back) there is no cutting required and it's a super straight forward install. This should take less than two hours to install.

I prefer the Akra over the stock system in almost every situation...the only exception is the cold start with valves closed. Somehow on cold start it sounds more industrial than the stock system...although I wasn't a big fan of the cold start sound on the stock system either. In every other situation Akra wins hands down - at least in my book, but that's a matter of taste and preference. It's almost as docile as stock in efficient mode and is way louder under wot in sport+...I can leave my neighborhood in the morning without waking the neighbors and really open it up if I want to. And cruising on the highway I can forget it's there - zero drone.

As far as weight, looks and performance...it's absolutely no comparison vs the stock system. Workmanship is a work of art - I could be wrong but I think very few other exhaust systems come anywhere close on quality. Looks are once again subjective (to a degree), but to my eyes this is the best looking set up out there and it totally fixes the "diaper butt" or "udder" look of the stock system. It looks so good now. I had contemplated the MPE...but got turned off by the way it looks, still hangs waay too low for my liking.

And then you factor in a 40+ lbs weight savings and probably 10-15 bhp (mostly due to removal of mid cats)...the only real drawback is how pricey the thing is.
Thanks for the post! Do you feel that the Akra's sound doesn't really come across properly in youtube videos, or does it seem to be relatively representative? My friend has an M4 GTS and I've noticed it sounds infinitely better in person than what the videos give off.
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      04-29-2021, 11:47 AM   #21
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Quote:
Originally Posted by yaymitch View Post
Have Akra Evo (includes mid pipe), no tuning required and no CEL. Better sound, better look, weight savings and deletion of secondary cats are all advantages of Akra over stock system. The latter two are advantages over most other after market exhaust systems.
I wonder why the akra website says you need a tune when that doesn't seem to be the case... Do you find that the sound of the akra in youtube videos is representative of what it's like in person?
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      04-29-2021, 12:36 PM   #22
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Quote:
Originally Posted by Hydarnes View Post
I wonder why the akra website says you need a tune when that doesn't seem to be the case...
I believe they state that because of this:

Quote:
The system was developed on BMW M2 Competition (F87N) equipped with OPF/GPF
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