[M2C_jondagger]

Originally Posted by ESB

Thanks for acknowleding the issue! As far as you're aware, this 2k rpm issue is only applicable to people that have catless DPs?

Correct! Only for catless dps

[ONLYACTIVE]

Originally Posted by MyM2See

Thank you. What about those who already have the resonated version? Can we exchange for whatever the solution is?

Yes only issue is with resonated version with catless DP's, Yes once we solve the problem we will make good and exchange out the old resonators.

[SEAT TIME RULES]

Originally Posted by n8dgr84

Catless dp are the issue.

Have a listen to the BMW Invasion vids on youtube to get an idea on how to resolve it.

I would guess the AA Mad Max is what you need - or just don't drive at 2k rpm with valves open.

The AA Mad Max does not fit on the M2C. You have to go with their new valved axleback. I'm still waiting on mine to ship.

I'm running Wagner 200 Cel HFC's w/ AA traditional midpipe with OEM rear section.

There is zero rasp at any RPM with this setup. I doubt me adding the AA valved setup will change that. As soon as I get it on I'll post

[MyM2See]

Originally Posted by ONLYACTIVE

Yes only issue is with resonated version with catless DP's, Yes once we solve the problem we will make good and exchange out the old resonators.

Thats great to hear. Will be able to bring it into the shop to get it replaced?

[Supadice]

Originally Posted by speedsnice

Installed mine, it paired up to my Remus Race axleback and stock downpipes. With the valves closed it’s quiet with a nice deep smooth tone. Valves open it sounds like a completely different animal.
Videos don’t do this setup justice.

Can you share your clips?

[n8dgr84]

Originally Posted by ONLYACTIVE

Yes only issue is with resonated version with catless DP's, Yes once we solve the problem we will make good and exchange out the old resonators.

What about those of us that did our research and don't want larger resonators (or a delay in shipment)?

[SflBimmer8484]

Originally Posted by ESB

Thanks for acknowleding the issue! As far as you're aware, this 2k rpm issue is only applicable to people that have catless DPs?

Correct only catless downpipe owners are affected.

[SflBimmer8484]

Originally Posted by n8dgr84

What about those of us that did our research and don't want larger resonators (or a delay in shipment)?

Give us a call with your name and order number.

[ozmartini]

I'm on the verge of ordering, since the sound is just amazing. But with everything stock, what exactly is the volume increase we can expect with installing just the non-resonated midpipe? Seems like nobody on here is answering this question.

Also, do I need to order any additional gaskets when installing this to stock exhaust?

[Supadice]

Originally Posted by Andrew@ActiveAutowerke

Correct only catless downpipe owners are affected.

How about resonated catless downpipes? Are those also affected with the resonated mid. And are the resonators larger on the m3/m4 model

[2020M2Competition]

Originally Posted by ozmartini

Also, do I need to order any additional gaskets when installing this to stock exhaust?

You're supposed to install new gaskets between the downpipes and the midpipes

https://f87.bimmerpost.com/forums/sh...&postcount=389

https://f87.bimmerpost.com/forums/sh...&postcount=397

[Finz]

I was reluctant to rely solely on the forum videos, so in late October I took a day and drove four hours each way to listen to the Hoffmobile's exhaust - AA EL non-res midpipe, stock downpipes and stock muffler. I considered it a huge improvement, so ordered non-res EL as soon as the pre-orders became available. Installed a few days ago, (still stock DPs and muffler) and will offer my initial, unscientific, observations.

Cold start, after an initial BLAP, is no louder than stock. A bit lower in tone, and not as obnoxious.

Efficient mode: definitely a more even sound. To me about the same loudness as stock, but more pleasant. I can live with this.

Sport/Sport+ : Woo Hoo! I can finally hear the exhaust while accelerating at speed with the windows down, and it gets better as the rpms rise. What an amazing concept! And it sounds really good. This was my goal.

Several have asked, "exactly how much louder ?" I cannot give you exact, but to go from "Effin car, I can't hear you" to "Woo Hoo" should tell you something. It's all a matter of perspective, I know some people think it is too loud. I could actually live with it a bit louder during WOT, but this is a huge improvement. Around town it is still a good sound, not too loud. Again, sounds good to me and bystanders don't stop everything and say, "WTF is that?" Except for the burbles, especially in Sport +. They are now more obnoxious and have to go away - but that's another topic.

I had already painted the muffler so I now have better sound to go with the better visual. I'm very happy with the way the EL midpipe has transformed my driving experience.

Thanks AA, thanks Hoffmobile.

[ozmartini]

Originally Posted by Finz

I was reluctant to rely solely on the forum videos, so in late October I took a day and drove four hours each way to listen to the Hoffmobile's exhaust - AA EL non-res midpipe, stock downpipes and stock muffler. I considered it a huge improvement, so ordered non-res EL as soon as the pre-orders became available. Installed a few days ago, (still stock DPs and muffler) and will offer my initial, unscientific, observations.

Cold start, after an initial BLAP, is no louder than stock. A bit lower in tone, and not as obnoxious.

Efficient mode: definitely a more even sound. To me about the same loudness as stock, but more pleasant. I can live with this.

Sport/Sport+ : Woo Hoo! I can finally hear the exhaust while accelerating at speed with the windows down, and it gets better as the rpms rise. What an amazing concept! And it sounds really good. This was my goal.

Several have asked, "exactly how much louder ?" I cannot give you exact, but to go from "Effin car, I can't hear you" to "Woo Hoo" should tell you something. It's all a matter of perspective, I know some people think it is too loud. I could actually live with it a bit louder during WOT, but this is a huge improvement. Around town it is still a good sound, not too loud. Again, sounds good to me and bystanders don't stop everything and say, "WTF is that?" Except for the burbles, especially in Sport +. They are now more obnoxious and have to go away - but that's another topic.

I had already painted the muffler so I now have better sound to go with the better visual. I'm very happy with the way the EL midpipe has transformed my driving experience.

Thanks AA, thanks Hoffmobile.

Thank you for this! Sounds like exactly what I'm looking for; now I can order this thing guilt-free.

[JustinHEMI]

Originally Posted by Finz

I was reluctant to rely solely on the forum videos, so in late October I took a day and drove four hours each way to listen to the Hoffmobile's exhaust - AA EL non-res midpipe, stock downpipes and stock muffler. I considered it a huge improvement, so ordered non-res EL as soon as the pre-orders became available. Installed a few days ago, (still stock DPs and muffler) and will offer my initial, unscientific, observations.

Cold start, after an initial BLAP, is no louder than stock. A bit lower in tone, and not as obnoxious.

Efficient mode: definitely a more even sound. To me about the same loudness as stock, but more pleasant. I can live with this.

Sport/Sport+ : Woo Hoo! I can finally hear the exhaust while accelerating at speed with the windows down, and it gets better as the rpms rise. What an amazing concept! And it sounds really good. This was my goal.

Several have asked, "exactly how much louder ?" I cannot give you exact, but to go from "Effin car, I can't hear you" to "Woo Hoo" should tell you something. It's all a matter of perspective, I know some people think it is too loud. I could actually live with it a bit louder during WOT, but this is a huge improvement. Around town it is still a good sound, not too loud. Again, sounds good to me and bystanders don't stop everything and say, "WTF is that?" Except for the burbles, especially in Sport +. They are now more obnoxious and have to go away - but that's another topic.

I had already painted the muffler so I now have better sound to go with the better visual. I'm very happy with the way the EL midpipe has transformed my driving experience.

Thanks AA, thanks Hoffmobile.

Excellent report, I can't wait!

Would you mind PMing me what you used to paint your muffler?

[medphysdave]

Originally Posted by Finz

I was reluctant to rely solely on the forum videos, so in late October I took a day and drove four hours each way to listen to the Hoffmobile's exhaust - AA EL non-res midpipe, stock downpipes and stock muffler. I considered it a huge improvement, so ordered non-res EL as soon as the pre-orders became available. Installed a few days ago, (still stock DPs and muffler) and will offer my initial, unscientific, observations.

Cold start, after an initial BLAP, is no louder than stock. A bit lower in tone, and not as obnoxious.

Efficient mode: definitely a more even sound. To me about the same loudness as stock, but more pleasant. I can live with this.

Sport/Sport+ : Woo Hoo! I can finally hear the exhaust while accelerating at speed with the windows down, and it gets better as the rpms rise. What an amazing concept! And it sounds really good. This was my goal.

Several have asked, "exactly how much louder ?" I cannot give you exact, but to go from "Effin car, I can't hear you" to "Woo Hoo" should tell you something. It's all a matter of perspective, I know some people think it is too loud. I could actually live with it a bit louder during WOT, but this is a huge improvement. Around town it is still a good sound, not too loud. Again, sounds good to me and bystanders don't stop everything and say, "WTF is that?" Except for the burbles, especially in Sport +. They are now more obnoxious and have to go away - but that's another topic.

I had already painted the muffler so I now have better sound to go with the better visual. I'm very happy with the way the EL midpipe has transformed my driving experience.

Thanks AA, thanks Hoffmobile.

Interested in the "burble removal". Are you tuned and can modify by that means, or are you planning another route?

[echoshotz]

Originally Posted by medphysdave

Interested in the "burble removal". Are you tuned and can modify by that means, or are you planning another route?

Burbles can be turned off using bimmerlink 👍

[Finz]

Originally Posted by medphysdave

Interested in the "burble removal". Are you tuned and can modify by that means, or are you planning another route?

Maybe Bimmerlink, maybe as part of Carbahn tune. Not sure yet. My upgraded driving pleasure score puts the necessity of a tune in question for the moment.

[DARKMTTR]

Hi gents,
Has anyone with stock downpipes and axleback decided to go for the Resonated EL Midpipe?

I haven't been able to find many videos with this setup, and I know AA recommends the non-resonated version if you're fully stock, but based on the limited videos available, I feel like the tone is slightly different between the two. Would be interested in hearing a side by side comparison of the two.

Thanks!

[NISFAN]

Originally Posted by Finz

I was reluctant to rely solely on the forum videos, so in late October I took a day and drove four hours each way to listen to the Hoffmobile's exhaust - AA EL non-res midpipe, stock downpipes and stock muffler. I considered it a huge improvement, so ordered non-res EL as soon as the pre-orders became available. Installed a few days ago, (still stock DPs and muffler) and will offer my initial, unscientific, observations.

Cold start, after an initial BLAP, is no louder than stock. A bit lower in tone, and not as obnoxious.

Efficient mode: definitely a more even sound. To me about the same loudness as stock, but more pleasant. I can live with this.

Sport/Sport+ : Woo Hoo! I can finally hear the exhaust while accelerating at speed with the windows down, and it gets better as the rpms rise. What an amazing concept! And it sounds really good. This was my goal.

Several have asked, "exactly how much louder ?" I cannot give you exact, but to go from "Effin car, I can't hear you" to "Woo Hoo" should tell you something. It's all a matter of perspective, I know some people think it is too loud. I could actually live with it a bit louder during WOT, but this is a huge improvement. Around town it is still a good sound, not too loud. Again, sounds good to me and bystanders don't stop everything and say, "WTF is that?" Except for the burbles, especially in Sport +. They are now more obnoxious and have to go away - but that's another topic.

I had already painted the muffler so I now have better sound to go with the better visual. I'm very happy with the way the EL midpipe has transformed my driving experience.

Thanks AA, thanks Hoffmobile.

This seems like the holy grail option, this engine does not go well with straight pipes, it needs muffler / downpipe exhaust volume to produce a deep non raspy tone. Bonus, because it means aftermarket downpipe aren't needed.

Thanks for the review.

[akkando]

Originally Posted by Finz

I was reluctant to rely solely on the forum videos, so in late October I took a day and drove four hours each way to listen to the Hoffmobile's exhaust - AA EL non-res midpipe, stock downpipes and stock muffler. I considered it a huge improvement, so ordered non-res EL as soon as the pre-orders became available. Installed a few days ago, (still stock DPs and muffler) and will offer my initial, unscientific, observations.

Cold start, after an initial BLAP, is no louder than stock. A bit lower in tone, and not as obnoxious.

Efficient mode: definitely a more even sound. To me about the same loudness as stock, but more pleasant. I can live with this.

Sport/Sport+ : Woo Hoo! I can finally hear the exhaust while accelerating at speed with the windows down, and it gets better as the rpms rise. What an amazing concept! And it sounds really good. This was my goal.

Several have asked, "exactly how much louder ?" I cannot give you exact, but to go from "Effin car, I can't hear you" to "Woo Hoo" should tell you something. It's all a matter of perspective, I know some people think it is too loud. I could actually live with it a bit louder during WOT, but this is a huge improvement. Around town it is still a good sound, not too loud. Again, sounds good to me and bystanders don't stop everything and say, "WTF is that?" Except for the burbles, especially in Sport +. They are now more obnoxious and have to go away - but that's another topic.

I had already painted the muffler so I now have better sound to go with the better visual. I'm very happy with the way the EL midpipe has transformed my driving experience.

Thanks AA, thanks Hoffmobile.

I think you can use BimmerLink now to turn off burbles on s55.

[Finz]

Originally Posted by akkando

I think you can use BimmerLink now to turn off burbles on s55.

I saw that as well, I will check it out. Thanks

[lengrenjt]

Originally Posted by speedsnice

Installed mine, it paired up to my Remus Race axleback and stock downpipes. With the valves closed it’s quiet with a nice deep smooth tone. Valves open it sounds like a completely different animal.
Videos don’t do this setup justice.

Are you running the res or non-res version EL mid?
Thanks!