Dinan exhaust tip issues?

Bx Tpr · 09-23-2016, 04:56 PM

Recently installed Dinan mufflers on the M and noticed the driver side tips extend further past the bumper than the passenger side. Wondering if anyone else has run into this issue? I'm running a macht schnell mid as well.

JsL · 09-23-2016, 05:34 PM

No, mine were even. Back up on some ramps and take a peek underneath.

Maybe there's tension on one of the rubber hangers?

ilikebmxbikes · 09-23-2016, 06:09 PM

Mine were dead even. Probably installed out of alignment. As JSL suggested, check the hangars.

Bx Tpr · 09-23-2016, 06:53 PM

All the hangers are good to go. I'm wondering if the midpipe to muffler clamps were tightened down enough.

shimmy23 · 09-23-2016, 07:06 PM

not sure how the dinan installs but is there room to slide back and forward using the connecting pipes?

Ink09 · 09-23-2016, 07:40 PM

Mine were even here, they are mated up to my stock x-pipe. Most likely just an alignment issue.

Bx Tpr · 09-23-2016, 08:16 PM

Quote:

Originally Posted by shimmy23

not sure how the dinan installs but is there room to slide back and forward using the connecting pipes?

The only adjustment available are vertical using the side mounts. I was just underneath and the mufflers aren't budging lol

RoundelObsession · 09-23-2016, 08:22 PM

Quote:

Originally Posted by Bx Tpr

The only adjustment available are vertical using the side mounts. I was just underneath and the mufflers are budging lol

Are the rubber mounts on the side of the muffler body orientated correctly. Go to Dinan's website and download the installation instructions. The rubber mounts have front and rear facing sides to them.

///M Ryder · 09-24-2016, 01:45 PM

Mine were even as well. It only looked like the left side after some serious driving and then would go back to normal after it cooled down........Phil

Bx Tpr · 09-24-2016, 11:34 PM

Everything was inspected and tightened up after a day of driving and same thing. Going to double check if the muffler is making contact with the heat shield.

yoslow · 06-16-2020, 09:07 AM

3 years, 8 months, 22 day necro, anyone run into this issue? OP's been inactive since 2019, wondering if he ever got it fixed...having the same issues with my exhaust

BayE30 · 06-16-2020, 10:31 AM

Seems like not everybody has the same eye when it comes to this issue, but almost every single m3 i have looked at that has seperate rear mufflers(dinan style) has uneven tips. My Dinan also looks unever, and i have run it with 3 different X-pipes. Some times i will approach an owner who has same issue with a different exhaust, and they will look at me like im crazy.

Scharbag · 06-16-2020, 11:20 AM

Quote:

Originally Posted by Bx Tpr

Recently installed Dinan mufflers on the M and noticed the driver side tips extend further past the bumper than the passenger side. Wondering if anyone else has run into this issue? I'm running a macht schnell mid as well.

Yup, my Dinan pipes are just like yours. Drives me nuts. I am the second owner of the car. I try not to let it bother me...

There is no way to adjust the Dinan cans. Same result with stock, RKP and AA X-Pipes...

:|

Thumbie · 04-08-2026, 12:12 PM

Pulling up an old thread to say...I think it's just luck of the draw.

I bought a used set of Dinan mufflers off my friend with an e90. They lined up evenly. He said he didn't need to adjust when he installed them, they just fit nicely (and he is very particular about stuff like that)

Just put them on my car and driver side sticks out a bit more, less than 1/4 inch. I haven't tried adjusting yet, just think it's funny.

a5m · 04-08-2026, 01:53 PM

Since the Dinan mufflers are a one piece design, there isn't much adjustability, other than how far you've pushed the pipes onto the X-Pipe flanges.

Also if your X-Pipe isn't equal in length on both sides, you'd see the discrepancy.

omgzirra_exe · 04-08-2026, 02:10 PM

It's most likely the exhaust hangers. Replace them. They get worn out and can cause alignment issues

09-23-2016, 04:56 PM	#1
Bx Tpr Captain 133 Rep 891 Posts Drives: 23 CSL Join Date: Feb 2009 Location: NY iTrader: (8)	Dinan exhaust tip issues? Recently installed Dinan mufflers on the M and noticed the driver side tips extend further past the bumper than the passenger side. Wondering if anyone else has run into this issue? I'm running a macht schnell mid as well. Attached Images
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09-23-2016, 05:34 PM	#2
JsL Major 459 Rep 1,266 Posts Drives: 2011 AW M3 ZCP Join Date: Dec 2013 Location: SF Bay Area iTrader: (2)	No, mine were even. Back up on some ramps and take a peek underneath. Maybe there's tension on one of the rubber hangers?
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09-23-2016, 06:09 PM	#3
ilikebmxbikes Banned 1541 Rep 4,743 Posts Drives: S65 1M Clone & E92 M3 4.6L Join Date: Apr 2011 Location: San Francisco iTrader: (42) Garage List '08/13 1M Clone 4.0L [10.00] '11 e92 M3 4.6L [10.00]	Mine were dead even. Probably installed out of alignment. As JSL suggested, check the hangars.
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09-23-2016, 06:53 PM	#4
Bx Tpr Captain 133 Rep 891 Posts Drives: 23 CSL Join Date: Feb 2009 Location: NY iTrader: (8)	All the hangers are good to go. I'm wondering if the midpipe to muffler clamps were tightened down enough.
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09-23-2016, 07:06 PM	#5
shimmy23 F15 daddymobile 2538 Rep 3,641 Posts Drives: GS X5 Join Date: Aug 2011 Location: WA iTrader: (3)	not sure how the dinan installs but is there room to slide back and forward using the connecting pipes? __________________ -brandon F15 Glacier Silver journal
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09-23-2016, 07:40 PM	#6
Ink09 First Lieutenant 44 Rep 323 Posts Drives: 08 E92 M3 DCT / 84 E30 318i Join Date: Jul 2013 Location: North Carolina iTrader: (0)	Mine were even here, they are mated up to my stock x-pipe. Most likely just an alignment issue.
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09-24-2016, 01:45 PM	#9
///M Ryder Grown Azz Man 453 Rep 3,021 Posts Drives: GT4 Join Date: Dec 2010 Location: Texas iTrader: (8)	Mine were even as well. It only looked like the left side after some serious driving and then would go back to normal after it cooled down........Phil __________________ 2016 GT4.....Sapphire Blue Metallic, Platinum stitch Leather/Alcantara interior, Carbon Fiber Trim, PCM w/Nav, Guards Red Belts, 2 Zone Climate, Sport Chrono, LWB, Smokers Pack, Big Gas Tank, Light Design Pack, Bi-Xenon w/PDL, Auto Dim Mirror, Clear Side Markers, GTS Clear Taillights
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09-24-2016, 11:34 PM	#10
Bx Tpr Captain 133 Rep 891 Posts Drives: 23 CSL Join Date: Feb 2009 Location: NY iTrader: (8)	Everything was inspected and tightened up after a day of driving and same thing. Going to double check if the muffler is making contact with the heat shield.
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06-16-2020, 09:07 AM	#11
yoslow Private First Class 56 Rep 110 Posts Drives: SSII E92 M3 Join Date: Jun 2019 Location: Toronto iTrader: (0)	3 years, 8 months, 22 day necro, anyone run into this issue? OP's been inactive since 2019, wondering if he ever got it fixed...having the same issues with my exhaust
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06-16-2020, 10:31 AM	#12
BayE30 Lieutenant Colonel 1353 Rep 1,881 Posts Drives: 2011.75 E90 M3 ZCP Join Date: Jul 2014 Location: San Francisco iTrader: (5)	Seems like not everybody has the same eye when it comes to this issue, but almost every single m3 i have looked at that has seperate rear mufflers(dinan style) has uneven tips. My Dinan also looks unever, and i have run it with 3 different X-pipes. Some times i will approach an owner who has same issue with a different exhaust, and they will look at me like im crazy. __________________ I am never able to post pictures on forums, all my pics are on IG @baye30 https://www.instagram.com/baye30/ Current Garage - [2011 E90 M3 ZCP] [2005 E53 X5 3.0 Sport] [1988 E30 325IS 24V]
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04-08-2026, 12:12 PM	#14
Thumbie Lieutenant 326 Rep 546 Posts Drives: 2011 M3/4/6 Join Date: Sep 2021 Location: SF Bay Area iTrader: (0)	Pulling up an old thread to say...I think it's just luck of the draw. I bought a used set of Dinan mufflers off my friend with an e90. They lined up evenly. He said he didn't need to adjust when he installed them, they just fit nicely (and he is very particular about stuff like that) Just put them on my car and driver side sticks out a bit more, less than 1/4 inch. I haven't tried adjusting yet, just think it's funny. __________________ -Thumbie 2011 Jerez E90 M3 6-speed Competition Package
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04-08-2026, 01:53 PM	#15
a5m Lieutenant Colonel 1577 Rep 1,602 Posts Drives: 2011 BMW E90 M3 Join Date: Jan 2023 Location: Chitown iTrader: (7)	Since the Dinan mufflers are a one piece design, there isn't much adjustability, other than how far you've pushed the pipes onto the X-Pipe flanges. Also if your X-Pipe isn't equal in length on both sides, you'd see the discrepancy.
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04-08-2026, 02:10 PM	#16
omgzirra_exe Colonel 2670 Rep 2,426 Posts Drives: 4.4L M3, 1JZGTE IS300, N55B30 Join Date: Jun 2019 Location: BMW, M3 iTrader: (0)	It's most likely the exhaust hangers. Replace them. They get worn out and can cause alignment issues __________________ Build: ZillaSpec M3 N1 Build M3Post Track General Discussion: Discord #fakeGTS
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