[Mr. Hankey]

Originally Posted by MASHCT

M2 button activated. More burbles.

That really sounds great MASHCT! Questions:

1. In the first video there are no burbles, is that ECO mode or is the valve controller closed?

2. Second video you say M2 activated...I assume it's in Sport or is that Sport+?

3. What diffuser is that? It covers the can nicely.

4. OK this one is stupid, so please everyone judge me (this is Bimmerpost after all, my feelings would be hurt if you didn't )....my avatar is a piece of poo so you all already know I have poor self-esteem and overcompensate with crappy humor (bah-da-boom)...but here goes: How much louder is it inside valves open vs closed?

I drive in Sport exclusively for the linear throttle response, don't care about the burbles, but I like a sportier note. One thing about this car is the H&K is WAY better than the F80 H&K ever was (with B&W coding that is) and I really appreciate my music. I want to be able to hear it....had the titanium BMW MP exhaust on my F80 and that thing was a bit drone-y and would drown out the music on days I wanted music...I suspect a "Jekyll and Hyde" exhaust might be better for me - quiet valves closed, but if I'm in a "speedy" kind of mood and taking my stress out on the accelerator pedal (we all have those days right?) I want to hear the car with valves open and noticeable exhaust note, for me...I don't care what others hear outside the car...how does this setup do that way?

I suspect for me I'd need this setup with a valve controller and perhaps just code off ASD inside the car to quiet the cabin a bit and trade for actual exhaust sound. The stock exhaust is SO quiet inside that I need the ASD on now just to know where I am rev-wise. Maybe I just need an axle back to start (or wonder if a midpipe would be better to start - open to suggestions), and add from there if needed. I just suspect that the midpipe makes it louder in the car than out.

Anyhow, this is just me musing, but man that sounds great. LOVE that you have no drone, that is so key. Loved the prior MPE, but the drone at certain RPMs could be a mood killer certain days.

[MASHCT]

See my answers after each question. By the way, how many Katie Courics do you weigh?

Originally Posted by Mr. Hankey

That really sounds great MASHCT! Questions:

1. In the first video there are no burbles, is that ECO mode or is the valve controller closed?

MASHCT: First video is all ECO mode. You can hear me opening/closing the valve controller. The louder one is the 100% open; the other is OEM setting. The SST also has a 100% close setting, just know you should not do any aggressive driving or the track with the 100% closed setting.

2. Second video you say M2 activated...I assume it's in Sport or is that Sport+?

MASHCT: Sport+. Fully engaged M2.

3. What diffuser is that? It covers the can nicely.

MASHCT: This is the Maxton Rear Valance V1. I bought it for 2 reasons: that it covers the muffler can & the angled openings to me look better than the straight openings of OEM & some other valances. I also have their V1 rear side splitters. Gloss black, not CF. CF doesn't appeal to me on a black car.

4. OK this one is stupid, so please everyone judge me (this is Bimmerpost after all, my feelings would be hurt if you didn't )....my avatar is a piece of poo so you all already know I have poor self-esteem and overcompensate with crappy humor (bah-da-boom)...but here goes: How much louder is it inside valves open vs closed?

MASHCT: You hear it but it is not obnoxious at all. I actually like that I hear the actual exhaust. But it is very much in the back ground. Roll the windows down & open the sunroof you WILL hear it, for sure. I also added a good amount of sound deadening in my doors, trunk & under the rear seat. That definitely helped reduce road noise quite a bit, so YMMV. There is absolutely NO DRONE with the Dinan/MAD set up & no rasp, either. It is a nice, deep exhaust note. Love it.

I drive in Sport exclusively for the linear throttle response, don't care about the burbles, but I like a sportier note. One thing about this car is the H&K is WAY better than the F80 H&K ever was (with B&W coding that is) and I really appreciate my music. I want to be able to hear it....had the titanium BMW MP exhaust on my F80 and that thing was a bit drone-y and would drown out the music on days I wanted music...I suspect a "Jekyll and Hyde" exhaust might be better for me - quiet valves closed, but if I'm in a "speedy" kind of mood and taking my stress out on the accelerator pedal (we all have those days right?) I want to hear the car with valves open and noticeable exhaust note, for me...I don't care what others hear outside the car...how does this setup do that way?

MASHCT: I significantly upgraded the sound system & added sound deadening. It plays much louder and cleaner than the HK. The HK just could not overcome road noise or driving with the windows down. I do not have any issues with the exhaust & listening to music. If I want to concentrate on listening to music, I just use the OEM setting or 100% closed. But even 100% open & M2 setting, the exhaust isn't crazy intrusive when cruising. Get on it & you will hear the exhaust.

I suspect for me I'd need this setup with a valve controller and perhaps just code off ASD inside the car to quiet the cabin a bit and trade for actual exhaust sound. The stock exhaust is SO quiet inside that I need the ASD on now just to know where I am rev-wise. Maybe I just need an axle back to start (or wonder if a midpipe would be better to start - open to suggestions), and add from there if needed. I just suspect that the midpipe makes it louder in the car than out.

MASHCT: I coded out the ASD. You can hear the exhaust when getting on it with this set up. The SST valve controller by itself will get you increased exhaust volume - 100% open is a lot louder than OEM.

Anyhow, this is just me musing, but man that sounds great. LOVE that you have no drone, that is so key. Loved the prior MPE, but the drone at certain RPMs could be a mood killer certain days.

I agree - the drone of the MPE on the F87 was brutal. I read BMW left it that way on purpose. Add that my F87 that had a sport cat downpipe, the drone was just too much. I wound up having a local exhaust shop (Pop's - same one that installed all of this) add a bottle resonator to my exhaust. That helped quite a bit, but didn't eliminate it completely. Still had drone for a shorter band of RPMs.

[BroDoze]

I very rarely hear of drone with the G8x cars, no matter what midpipe/axle-back is used. Seems the droning starts when DPs get installed.

[mike@x-ph.com]

Originally Posted by BroDoze

I very rarely hear of drone with the G8x cars, no matter what midpipe/axle-back is used. Seems the droning starts when DPs get installed.

If the brace is installed correctly and has enough clearance, getting a drone from this engine is very hard unless you go full straight pipe.

The only time I experienced drone was with the active autowerke Gen 1 equal length + catted downpipes + active autowerke axle back.

this is now fixed by getting the Gen 2 equal length instead with the extra resonator

[JTO24]

Thanks for being the guinea pig! I have the Dinan mid pipe on my G80 and it's awesome, but just missing *something*... was thinking about swapping to a single mid or adding the MAD rear section and this might be the move now. Thanks for posting! Sounds great!

[mike@x-ph.com]

Originally Posted by JTO24

Thanks for being the guinea pig! I have the Dinan mid pipe on my G80 and it's awesome, but just missing *something*... was thinking about swapping to a single mid or adding the MAD rear section and this might be the move now. Thanks for posting! Sounds great!

Let us know how you move forward

[JTO24]

Originally Posted by mike@x-ph.com

Let us know how you move forward

haha I know, I'm all over the place... either way, once it's time I'll be reaching out to you

[MASHCT]

Originally Posted by JTO24

Thanks for being the guinea pig! I have the Dinan mid pipe on my G80 and it's awesome, but just missing *something*... was thinking about swapping to a single mid or adding the MAD rear section and this might be the move now. Thanks for posting! Sounds great!

JTO - trust me on this: that MAD exhaust is stellar. There is simply nothing bad to say about it. Hardest decision you'll make is which tips to get! 100% satisfied with my purchase and the SOUND! You simply don't want for anything with this exhaust - it's all there.

Be confident in your purchase if you go with MAD. No one paid me dime or discount to say any of this, either.

[JABCAT]

Wife ordered the Dinan mid-pipe & MAD exhaust with carbon tips for me. Would have preferred black but didn't like the color of the logo on them. At least the red logo on the carbon tips will match the red car.

I got the wife new intakes and a custom leather & carbon fiber steering wheel for her X3MC. If she didn't enjoy her cars as much as I do mine, I'd be in trouble, a lot

[Info@mad-us.com]

Originally Posted by JABCAT

Wife ordered the Dinan mid-pipe & MAD exhaust with carbon tips for me. Would have preferred black but didn't like the color of the logo on them. At least the red logo on the carbon tips will match the red car.

I got the wife new intakes and a custom leather & carbon fiber steering wheel for her X3MC. If she didn't enjoy her cars as much as I do mine, I'd be in trouble, a lot

Congrats!

[Southtown]

Really enjoying the mad exhaust paired with my AA equal length midpipe. Would highly recommend mad’s products (have their intakes too).

[MASHCT]

Originally Posted by Southtown

Really enjoying the mad exhaust paired with my AA equal length midpipe. Would highly recommend mad’s products (have their intakes too).

I did their intakes, too - not the front mount tho. I like the induction sounds I'm getting. They're there, but not super loud/annoying.

Did you do the front mount? If yes, can you hear the induction sounds?

I really like MAD'S products. Excellent quality and designs.

[Southtown]

Originally Posted by MASHCT

I did their intakes, too - not the front mount tho. I like the induction sounds I'm getting. They're there, but not super loud/annoying.

Did you do the front mount? If yes, can you hear the induction sounds?

I really like MAD'S products. Excellent quality and designs.

I have under the hood.

[mike@x-ph.com]

Originally Posted by Southtown

I have under the hood.

Looks good

[Info@mad-us.com]

Originally Posted by Southtown

I have under the hood.

Beautiful Color

[MASHCT]

Screen shot of a sound meter readout. SST controller set to 100% open and M2 mode activated. Idle was about 80db to max 115db with a decent rev. I am sure it will go louder if I really got on it.

The minimum 20db was ambient sound before I started the car. Normal outdoor sounds with breeze & birds.

Of course I had to ruin the bucolic setting with car sounds. My neighbors were thrilled. LOL

[mike@x-ph.com]

Originally Posted by MASHCT

Screen shot of a sound meter readout. SST controller set to 100% open and M2 mode activated. Idle was about 80db to max 115db with a decent rev. I am sure it will go louder if I really got on it.

The minimum 20db was ambient sound before I started the car. Normal outdoor sounds with breeze & birds.

Of course I had to ruin the bucolic setting with car sounds. My neighbors were thrilled. LOL

thank you for sharing, do you know the stock DB?

[MASHCT]

Originally Posted by mike@x-ph.com

thank you for sharing, do you know the stock DB?

Howdy Mike! No... I wasn't thinking and missed the opportunity to measure it. And I was kicking myself at the installer's for not asking to do it before they took it all apart.

If I see another M2 at any of the car events I go to that has a stock exhaust, I'll ask if we can do a test.

Maybe someone will see this post and do a test with the same app on a galaxy S22 ultra. It's Sound Meter by Splend.

[mike@x-ph.com]

Originally Posted by MASHCT

Howdy Mike! No... I wasn't thinking and missed the opportunity to measure it. And I was kicking myself at the installer's for not asking to do it before they took it all apart.

If I see another M2 at any of the car events I go to that has a stock exhaust, I'll ask if we can do a test.

Maybe someone will see this post and do a test with the same app on a galaxy S22 ultra. It's Sound Meter by Splend.

yes hopefully some will test the stock sound, DB is not everything, but its nice to know how different exhaust compare in terms of volume

[MASHCT]

Originally Posted by mike@x-ph.com

yes hopefully some will test the stock sound, DB is not everything, but its nice to know how different exhaust compare in terms of volume

Yup it is the quality of the sound that matters to me. I don't really like a super loud exhaust. This is a great combo of volume & deep roar. I am so curious to know comparison to OEM!!

[Info@mad-us.com]

Originally Posted by MASHCT

Howdy Mike! No... I wasn't thinking and missed the opportunity to measure it. And I was kicking myself at the installer's for not asking to do it before they took it all apart.

If I see another M2 at any of the car events I go to that has a stock exhaust, I'll ask if we can do a test.

Maybe someone will see this post and do a test with the same app on a galaxy S22 ultra. It's Sound Meter by Splend.

I guess it depends on how far you are measuring from but claimed Db of stock system hit a max of 112db.

[MASHCT]

Originally Posted by Info@mad-us.com

I guess it depends on how far you are measuring from but claimed Db of stock system hit a max of 112db.

I was probably about 3' away from the exhaust & directly in the middle of the pipes. Any closer I thought would be too close to the bumper & not really picking up the full sound coming freely from the pipes. Should I check again with the phone in a different spot?