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BMW 5-Series (G30) Forum Engine, Exhaust, Drivetrain, Tuning Modifications NEW RELEASE: Dinan High Flow Middle Exhaust for the G30 M550i

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      11-19-2019, 02:56 PM   #1
Dinan_Engineering
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NEW RELEASE: Dinan High Flow Middle Exhaust for the G30 M550i

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Dinan High Flow Middle Exhaust for the G30 M550i

Part Number: D660-0080
Applications: 2018-2020 BMW G30 M550i xDrive
Product Page(s) / Pricing: bit.ly/M550i-ME
Recommended Install Time: 2.7 Hours
Release Date: Available Now!

Description: The Dinan Middle Exhaust for the G30 M550i introduces a more aggressive tone and an increase in volume over the stock system. Coupled with the associated Dinan exhaust the sound is further enhanced into a smoother, fuller and more aggressive growl that is becoming of the V8 powered sedan.

This full mid-section kit removes the hydro-formed factory center section, including the resonator, and replaces it with larger 3" T304 stainless steel tubing for freer flowing capabilities. In place of the factory resonator Dinan incorporates a beautifully crafted X-pipe made from mandrel bent tubing for minimum restriction unlike stamped X-pipes which are commonplace in the market. This sophisticated 'X' is not only the focal point of the system in terms of aesthetics, but also the star when it comes to the affects on the sound. Promoting even flow to both banks of tips, the 'X' removes unwanted nuances in sound caused by uneven exhaust flow that is found in stock systems. Along with the inherent benefit of increased volume by removal of the resonator, the Dinan Middle Exhaust for the G30 M550i produces a louder, smoother and fuller exhaust note.

*The Dinan Middle Exhaust for the G30 M550i is only confirmed to fit with the Dinan Free Flow Axle Back and stock exhaust systems. Fitment with other axle back units is not guaranteed.

Features/Benefits:
  • Smoother, sportier sound
  • 3" (76mm) tubing replaces stock 70mm tubing for free flow
  • Deletes resonator between catalyst and rear muffler for increased volume
  • Includes X-pipe crossover made from mandrel bent tubing for minimum restriction
  • 100% 304 stainless steel construction
  • Bolt-on installation
  • Mounting hardware included


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      11-19-2019, 07:08 PM   #2
modthispny
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this is awesome. As I have already removed my resonators, don't think I will go with this, butt, definitely recommend this. It really makes it a night/day difference in sound.
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      11-29-2019, 12:56 AM   #3
deepat04
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Quote:
Originally Posted by modthispny View Post
this is awesome. As I have already removed my resonators, don't think I will go with this, butt, definitely recommend this. It really makes it a night/day difference in sound.
I also did a resonator delete. I went with 3 inch piping. Cost me $250 to have the work done, this looks to do basically the same thing paired with an axle back.
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      11-30-2019, 12:46 PM   #4
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      01-16-2020, 06:49 PM   #5
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Anyone install the new mid pipe that already has the Dinan exhaust? While I donít care how loud it is in sport mode, concerned how loud it is in comfort mode in the cabin around town and the highway.
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      01-17-2020, 07:45 AM   #6
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Originally Posted by blackdog2222 View Post
Anyone install the new mid pipe that already has the Dinan exhaust? While I donít care how loud it is in sport mode, concerned how loud it is in comfort mode in the cabin around town and the highway.
The 5 series has a ridiculous amount of insulation and next to no sound transfers into the cabin even with the mid-pipe added regardless of mode.
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      01-18-2020, 08:55 AM   #7
riskmaker76
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Yea and 5 times more ...just makes no sense

I would pull the trigger at 700 not 1200

Quote:
Originally Posted by deepat04 View Post
I also did a resonator delete. I went with 3 inch piping. Cost me $250 to have the work done, this looks to do basically the same thing paired with an axle back.
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      01-27-2020, 09:03 PM   #8
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Given the limited audience for some of the quality after market products companies like Dinan offer, you have to expect such premium. Although I have to admit was a little miffed when I contacted my local Dinan dealer last month and he told me he couldn't place orders due to shipping issues with them so I missed the 10% discount.
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