NEW RELEASE: Dinan BMW G20 M340i Axle Back Exhaust Systems

placebo0311 · 05-17-2020, 08:04 PM

Quote:

Originally Posted by Gdiddy23

Any chance for pics of the polished set today???

My apologies man, it was a hell of a weekend. I'm going to get them tomorrow and will post in the afternoon. Just haven't had the time like I thought I had. Sorry for the delay!

placebo0311 · 05-18-2020, 10:10 AM

Pictures of the polished pipes are below

OTHER DINAN EXHAUST OWNERS:
I have a question regarding exhaust rattle. After recently installing this, I noticed rather loud rattling noises coming from the valves. It only seems to happen during a cold start, and after a minute or so they seem to dissipate under normal driving conditions (I think, as I can't hear anything on the highway and I don't hear anything when stopped but of course the vehicle isn't under load). I need to check further if I can hear them when driving at low RPM (same as cold start RPM). This just may be me being an noob to BMW and to Dinan products, but is anyone else getting this rattling noise? Either on this exhaust or other Dinan exhausts with valves? Just want to make sure I'm not going crazy. Thanks forum!!!

Dravit_M340i · 05-18-2020, 11:58 AM

Quote:

Originally Posted by placebo0311

Pictures of the polished pipes are below

OTHER DINAN EXHAUST OWNERS:
I have a question regarding exhaust rattle. After recently installing this, I noticed rather loud rattling noises coming from the valves. It only seems to happen during a cold start, and after a minute or so they seem to dissipate under normal driving conditions (I think, as I can't hear anything on the highway and I don't hear anything when stopped but of course the vehicle isn't under load). I need to check further if I can hear them when driving at low RPM (same as cold start RPM). This just may be me being an noob to BMW and to Dinan products, but is anyone else getting this rattling noise? Either on this exhaust or other Dinan exhausts with valves? Just want to make sure I'm not going crazy. Thanks forum!!!

THANK YOU!!!

But now I'm even more confused on what color to get! I was set on black but the polished looks amazing! Gives it a very nice contrast. Hmmmm....

Gdiddy23 · 05-18-2020, 01:20 PM

Nice looks good! As for the rattle, can't speak to that since I obviously don't have mine purchased yet.

I had same problem with the MPE on my F30 and it was due to the valve actuator and typically some kind of moisture build up around the valves causing them to rattle sometimes

placebo0311 · 05-18-2020, 03:13 PM

Quote:

Originally Posted by Gdiddy23

Nice looks good! As for the rattle, can't speak to that since I obviously don't have mine purchased yet.

I had same problem with the MPE on my F30 and it was due to the valve actuator and typically some kind of moisture build up around the valves causing them to rattle sometimes

Sometimes? But not all the time? My rattles on every cold start

Gdiddy23 · 05-18-2020, 03:18 PM

Quote:

Originally Posted by placebo0311

Quote:

Originally Posted by Gdiddy23

Nice looks good! As for the rattle, can't speak to that since I obviously don't have mine purchased yet.

I had same problem with the MPE on my F30 and it was due to the valve actuator and typically some kind of moisture build up around the valves causing them to rattle sometimes

Sometimes? But not all the time? My rattles on every cold start

Sounds like one of the butterfly valves is loose. I'd send video to your dealership or whoever installed it and to Dinan.

They're pretty responsive on here so maybe can even reach out to them directly.

placebo0311 · 05-18-2020, 03:27 PM

Quote:

Originally Posted by Gdiddy23

Sounds like one of the butterfly valves is loose. I'd send video to your dealership or whoever installed it and to Dinan.

They're pretty responsive on here so maybe can even reach out to them directly.

I did talk to them actually. Both of them said this was normal (albiet after I was originally supposed to get a new exhaust), but I figured it wouldn't hurt to ask if other people have had this issue just to make sure. I realize this is a new product and all, but the loudness & crassness of this rattle is causing me concern.

Gdiddy23 · 05-18-2020, 03:43 PM

Maybe another owner of the exhaust on here can shed some insight too?

BarryB · 05-18-2020, 06:15 PM

Mine did that on one side only and it was the clamp touching the heat shield.

placebo0311 · 05-18-2020, 08:25 PM

Quote:

Originally Posted by BarryB

Mine did that on one side only and it was the clamp touching the heat shield.

I'm taking that to read that after you fixed that, you no longer hear any rattles even from the valves?

BarryB · 05-18-2020, 08:44 PM

Quote:

Originally Posted by placebo0311

Quote:

Originally Posted by BarryB

Mine did that on one side only and it was the clamp touching the heat shield.

I'm taking that to read that after you fixed that, you no longer hear any rattles even from the valves?

Will start with the windows open in the am and confirm....stay tuned.

placebo0311 · 05-18-2020, 10:03 PM

Quote:

Originally Posted by BarryB

Will start with the windows open in the am and confirm....stay tuned.

Much appreciated, thank you!

BarryB · 05-19-2020, 09:59 AM

There IS an effing rattle on BOTH sides now. Sounds too close to the tips to be the valve but it must be......will be taking her back today or tomorrow. I can't hear inside the car tho.....
Thanks, I think 🤔 😎

possible335i2008 · 05-19-2020, 10:09 AM

I don't have this rattle, on cold start there is a vibration sometimes but no loud rattles and I start my vehicle in my garage so any all noises are apparent.

placebo0311 · 05-19-2020, 10:21 AM

Quote:

Originally Posted by BarryB

There IS an effing rattle on BOTH sides now. Sounds too close to the tips to be the valve but it must be......will be taking her back today or tomorrow. I can't hear inside the car tho.....
Thanks, I think ��

How loud is it. I took a video that has the rattle and can hear it from the start. At least in this one it's short, but it's generally been longer. URL is below
"https://vimeo.com/420331465"

BarryB · 05-19-2020, 10:23 AM

Quote:

Originally Posted by placebo0311

Quote:

Originally Posted by BarryB

There IS an effing rattle on BOTH sides now. Sounds too close to the tips to be the valve but it must be......will be taking her back today or tomorrow. I can't hear inside the car tho.....
Thanks, I think 🤔 😎

How loud is it. I took a video
" width="800" height="450" frameborder="0">

Vid doesn't work

placebo0311 · 05-19-2020, 10:26 AM

Quote:

Originally Posted by BarryB

Vid doesn't work

Just put the URL in. Embedding the video doesn't seem to be working for me.

BarryB · 05-19-2020, 10:36 AM

I just got off the phone with Andrew at Dinan. He says we will hear that "rattle" on cold start only for about 30 sec. It is normal as the valves are closed on cold start and we're hearing the air being forced past the valves. Will go check my car now after driving to work and see if it rattles after being warm. Shouldn't per Dinan.

Gdiddy23 · 05-19-2020, 11:05 AM

Sounds like golf t mod is in order

BarryB · 05-19-2020, 11:14 AM

Listen to this 🙄 right side only seems like....

Burrcold · 05-19-2020, 11:26 AM

Something ain't right with that right side!

BarryB · 05-19-2020, 12:02 PM

Quote:

Originally Posted by Burrcold

Something ain't right with that right side!

Yup she's going back to the shop....

05-18-2020, 10:10 AM	#134
placebo0311 Private First Class 133 Rep 113 Posts Drives: 2023 BMW M3 Competition Join Date: Oct 2019 Location: North Carolina iTrader: (0) Garage List 2023 BMW M3 Competi ... [0.00]	Pictures of the polished pipes are below OTHER DINAN EXHAUST OWNERS: I have a question regarding exhaust rattle. After recently installing this, I noticed rather loud rattling noises coming from the valves. It only seems to happen during a cold start, and after a minute or so they seem to dissipate under normal driving conditions (I think, as I can't hear anything on the highway and I don't hear anything when stopped but of course the vehicle isn't under load). I need to check further if I can hear them when driving at low RPM (same as cold start RPM). This just may be me being an noob to BMW and to Dinan products, but is anyone else getting this rattling noise? Either on this exhaust or other Dinan exhausts with valves? Just want to make sure I'm not going crazy. Thanks forum!!!
	Appreciate 3 1WickedE90198.00 Dsword1.50 TheCrespiEffect4.50 Quote

05-18-2020, 01:20 PM	#136
Gdiddy23 Major 908 Rep 1,168 Posts Drives: 2020 M340i Join Date: Dec 2018 Location: St. Paul, MN iTrader: (1) Garage List 2015 BMW F30 [0.00]	Nice looks good! As for the rattle, can't speak to that since I obviously don't have mine purchased yet. I had same problem with the MPE on my F30 and it was due to the valve actuator and typically some kind of moisture build up around the valves causing them to rattle sometimes __________________ 2020 M340xi PB (sold) 2020 Ram 1500 Laramie (Daily) 2019 Shelby GT350R (Weekend)
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05-18-2020, 03:43 PM	#140
Gdiddy23 Major 908 Rep 1,168 Posts Drives: 2020 M340i Join Date: Dec 2018 Location: St. Paul, MN iTrader: (1) Garage List 2015 BMW F30 [0.00]	Maybe another owner of the exhaust on here can shed some insight too? __________________ 2020 M340xi PB (sold) 2020 Ram 1500 Laramie (Daily) 2019 Shelby GT350R (Weekend)
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05-18-2020, 06:15 PM	#141
BarryB Lieutenant Colonel 871 Rep 1,758 Posts Drives: 30Jahre M5 plus a few more M's Join Date: May 2012 Location: Palo Alto CA iTrader: (0) Garage List 2022 BMW M5 CS [0.00] 2020 BMW M340i Xdrive [0.00] 2019 BMW M2 Competi ... [0.00] 2003 BMW DINAN S3 M5 [0.00] 2017 BMW 30 Jahre M3 [0.00] 2016 BMW M4 GTS [0.00] 2015 BMW 30 Jahre M5 [0.00] 1995 BMW M3 [0.00]	Mine did that on one side only and it was the clamp touching the heat shield. __________________ Current non-BMW's 20 Jeep Grand Cherokee 03 Cooper S (Maxi Tuned 50bhp) 60 Impala (43k orig mi) 15 Turbo S (Kobb tune and Kline exhaust)
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05-19-2020, 09:59 AM	#145
BarryB Lieutenant Colonel 871 Rep 1,758 Posts Drives: 30Jahre M5 plus a few more M's Join Date: May 2012 Location: Palo Alto CA iTrader: (0) Garage List 2022 BMW M5 CS [0.00] 2020 BMW M340i Xdrive [0.00] 2019 BMW M2 Competi ... [0.00] 2003 BMW DINAN S3 M5 [0.00] 2017 BMW 30 Jahre M3 [0.00] 2016 BMW M4 GTS [0.00] 2015 BMW 30 Jahre M5 [0.00] 1995 BMW M3 [0.00]	There IS an effing rattle on BOTH sides now. Sounds too close to the tips to be the valve but it must be......will be taking her back today or tomorrow. I can't hear inside the car tho..... Thanks, I think 🤔 😎 __________________ Current non-BMW's 20 Jeep Grand Cherokee 03 Cooper S (Maxi Tuned 50bhp) 60 Impala (43k orig mi) 15 Turbo S (Kobb tune and Kline exhaust)
	Appreciate 0 Quote

05-19-2020, 10:09 AM	#146
possible335i2008 Major 166 Rep 1,222 Posts Drives: 335i Join Date: Mar 2008 Location: united states iTrader: (10)	I don't have this rattle, on cold start there is a vibration sometimes but no loud rattles and I start my vehicle in my garage so any all noises are apparent.
	Appreciate 0 Quote

05-19-2020, 10:36 AM	#150
BarryB Lieutenant Colonel 871 Rep 1,758 Posts Drives: 30Jahre M5 plus a few more M's Join Date: May 2012 Location: Palo Alto CA iTrader: (0) Garage List 2022 BMW M5 CS [0.00] 2020 BMW M340i Xdrive [0.00] 2019 BMW M2 Competi ... [0.00] 2003 BMW DINAN S3 M5 [0.00] 2017 BMW 30 Jahre M3 [0.00] 2016 BMW M4 GTS [0.00] 2015 BMW 30 Jahre M5 [0.00] 1995 BMW M3 [0.00]	I just got off the phone with Andrew at Dinan. He says we will hear that "rattle" on cold start only for about 30 sec. It is normal as the valves are closed on cold start and we're hearing the air being forced past the valves. Will go check my car now after driving to work and see if it rattles after being warm. Shouldn't per Dinan. __________________ Current non-BMW's 20 Jeep Grand Cherokee 03 Cooper S (Maxi Tuned 50bhp) 60 Impala (43k orig mi) 15 Turbo S (Kobb tune and Kline exhaust)
	Appreciate 0 Quote

05-19-2020, 11:05 AM	#151
Gdiddy23 Major 908 Rep 1,168 Posts Drives: 2020 M340i Join Date: Dec 2018 Location: St. Paul, MN iTrader: (1) Garage List 2015 BMW F30 [0.00]	Sounds like golf t mod is in order __________________ 2020 M340xi PB (sold) 2020 Ram 1500 Laramie (Daily) 2019 Shelby GT350R (Weekend)
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05-19-2020, 11:14 AM	#152
BarryB Lieutenant Colonel 871 Rep 1,758 Posts Drives: 30Jahre M5 plus a few more M's Join Date: May 2012 Location: Palo Alto CA iTrader: (0) Garage List 2022 BMW M5 CS [0.00] 2020 BMW M340i Xdrive [0.00] 2019 BMW M2 Competi ... [0.00] 2003 BMW DINAN S3 M5 [0.00] 2017 BMW 30 Jahre M3 [0.00] 2016 BMW M4 GTS [0.00] 2015 BMW 30 Jahre M5 [0.00] 1995 BMW M3 [0.00]	Listen to this 🙄 right side only seems like.... __________________ Current non-BMW's 20 Jeep Grand Cherokee 03 Cooper S (Maxi Tuned 50bhp) 60 Impala (43k orig mi) 15 Turbo S (Kobb tune and Kline exhaust)
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05-19-2020, 11:26 AM	#153
Burrcold Brigadier General 5323 Rep 3,962 Posts Drives: 2024 M3 Comp xDrive Join Date: Oct 2019 Location: Toronto, Canada iTrader: (0)	Something ain't right with that right side! __________________ Current: 2024 BMW M3 Competition xDrive \| 2022 Audi Q7 Gone: 2022 Audi RS5 \| 2020 BMW M340i \| 2019 Audi RS5
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