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BMW 3-Series and 4-Series Forum (F30 / F32) | F30POST > Technical Forums > N47 and N57 Turbodiesel Engine / Drivetrain / Exhaust Modifications > New exhaust mid back muffler remove, vibrating normal ?
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      07-04-2016, 02:23 PM   #1
jakk
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New exhaust mid back muffler remove, vibrating normal ?

Hi ive had a new exhaust on a 320d f30 two single tailpipe one each side, and muffler removed but since then I have a lot more vibration on tailpipe than runs through the exhaust, you can see the tailpipe moving when idle is this normal what's your opinions? Also the engine moves like vibrates I've not a clue is this normal ? Thanks for any help here
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      07-06-2016, 06:47 AM   #2
robbiep
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Is this a proper exhaust, or some cheapy bodgit job bought off ebay ?
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      07-06-2016, 07:09 AM   #3
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Propper job from custom exhaust company. I think as I've had the muffler removed obviously that is a heavey part and will not vibrate much due to its weight but now I've just got straight pipe work with tailpipe's obviously much much lighter maybe this is why I can seen the vibration more on the tailpipe? Maybe i just need more supports / hangers ?
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      07-07-2016, 07:51 AM   #4
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I have seen some vibration on my F36 430d, also custom job stainless and muffler removed. But on mine I have only seen it a few times. Normally it is almost no vibration at all.
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      07-07-2016, 08:06 AM   #5
jakk
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Thanks, have you got any photos of your exhaust under the car so i can compare setup ? Cheers for anyhelp,
Also mine really only vibrates when stationary idle.

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Originally Posted by Snusmumrikken View Post
I have seen some vibration on my F36 430d, also custom job stainless and muffler removed. But on mine I have only seen it a few times. Normally it is almost no vibration at all.
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      07-07-2016, 03:08 PM   #6
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Quote:
Originally Posted by jakk View Post
Thanks, have you got any photos of your exhaust under the car so i can compare setup ? Cheers for anyhelp,
Also mine really only vibrates when stationary idle.
I will see if I can get some photos tomorrow or at least during the weekend. You want photos from under the car as well I guess?
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      07-07-2016, 03:45 PM   #7
jakk
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Yes that would be great if you could, yes mainly under if poss so I can compare hangers etc, thanks pal

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Originally Posted by Snusmumrikken View Post
I will see if I can get some photos tomorrow or at least during the weekend. You want photos from under the car as well I guess?
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      07-08-2016, 05:41 AM   #8
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Quote:
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Yes that would be great if you could, yes mainly under if poss so I can compare hangers etc, thanks pal
Not possible to post Photos directly here? Where do you upload them?
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      07-08-2016, 06:00 AM   #9
jakk
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Hi it let's me add them a bit further down the as manage attachment? Hope this helps thx

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Not possible to post Photos directly here? Where do you upload them?
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      07-08-2016, 09:32 AM   #10
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And now maybe I got them attached, they was too big the first time. Hopefully it works now. Let me know if you need more pics.

/Rune
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      07-08-2016, 09:41 AM   #11
jakk
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Thanks its very very similar, but my rubber hangers look a lot more loose, also the metal hanger part welded to the exhaust mine is just bent down and the rubber is hooked on but yours looks like mushroom ends so the rubber and not move on the metal hanger. hope this makes sense ?>?
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      07-14-2016, 03:14 AM   #12
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Quote:
Originally Posted by jakk View Post
Thanks its very very similar, but my rubber hangers look a lot more loose, also the metal hanger part welded to the exhaust mine is just bent down and the rubber is hooked on but yours looks like mushroom ends so the rubber and not move on the metal hanger. hope this makes sense ?>?
Yes this makes sense, I will check if I can confirm the Mushroom ends. But I think you are right.
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      08-05-2016, 10:59 AM   #13
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Quote:
Originally Posted by jakk View Post
Hi ive had a new exhaust on a 320d f30 two single tailpipe one each side, and muffler removed but since then I have a lot more vibration on tailpipe than runs through the exhaust, you can see the tailpipe moving when idle is this normal what's your opinions? Also the engine moves like vibrates I've not a clue is this normal ? Thanks for any help here
does sound considerably better now without the muffler? can you attach a video or a soundclip?
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      08-05-2016, 12:14 PM   #14
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It sounds loads loads better, but I could not stop the vibration on tips its only when idle i had 4 exhaust places look at it all said the same its the way it is with some diesels as the new exhaust is also much lighter. Il try and do a vid this weekend but not getting much time at moment, what area are you ?
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      08-05-2016, 06:33 PM   #15
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Quote:
Originally Posted by jakk View Post
It sounds loads loads better, but I could not stop the vibration on tips its only when idle i had 4 exhaust places look at it all said the same its the way it is with some diesels as the new exhaust is also much lighter. Il try and do a vid this weekend but not getting much time at moment, what area are you ?
I'm around London / Kingston area you?
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      08-06-2016, 04:51 PM   #16
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Ah Tamworth near Birmingham, I'll try and do a vid soon
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