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      05-13-2020, 01:54 PM   #1
Dinan_Engineering
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NEW RELEASE: Dinan BMW F87 M2C Axle Back Exhaust + X-Pipe Systems

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Dinan BMW F87 M2C Axle Back Exhaust + X-Pipe Systems

Part Number(s): D660-0082 & D660-0082-BLK
Applications:
  • 2019-2020 F87 M2C
Product Page(s) / Pricing:Release Date: Available Now!

Description: The M2 Competition is the version of the platform everyone desired from the outset. While the original N55 powered M2 was a superb car in its own right, it lacked the power that everyone thought appropriate for an ‘M’ car. In the eyes of the consumer, the M2 Competition equipped with a legitimate ‘M’ motor took the M2 designation to its rightful place amongst its peers. However, the upgrade to more power comes at a price as the S55 engine is commonly viewed as a sub-par sounding engine. Paired with an unfortunate muffler design that leaves the rear end aesthetics wanting, there is still room for improvement on the upgraded M… particularly in the exhaust department. Enter Dinan.

Gone is the unsightly sagging OE muffler of the M2 Competition. Replaced by a sleek and nearly invisible Dinan system making the hindquarters pleasing to the eye once again. The system, constructed of brushed T304 stainless steel and TIG welded with immaculate color displays beautiful artisanship even if it is hidden from view. What is viewable are impressively large quad 4” (102mm) exhaust tips. Available in polished stainless or matte black, the signature Dinan straight cut tips offer a much more agreeable, and aggressive, focal point than the stock setup.

With the outward styling and look enhanced, improvement upon the raspy sound of the S55 motor was necessary. To accomplish this an overhaul of many facets of the stock system needed to happen. The internal baffling of the can has been completely redesigned to allow a more Dinan inspired note to be heard (deeper and throatier). The piping has also enlarged to allow freer flow and bring the tone even deeper yet. While these things all make the system a respectable representation of a Dinan M exhaust, what really sets the system apart is the incorporation of an ‘X’ in place of the factory resonator. Not only does the overall volume increase, but the crossover allows for a refined and smoothened exhaust note complete with a perfect mix of exotic undertones and raw aggression. Combined, these features transform the raspiness of the S55 into a more agreeable Dinan inspired aural experience that keeps you wanting more.

Features/Benefits:
  • More Power: Max gains of +6 HP @ 6300 RPM, +5 FT-LB @ 6300 RPM.
  • Enjoyably louder, sportier sound.
  • Quad 4" diameter clamp-on, double-walled laser engraved exhaust tips. Available in ceramic black or polished.
  • Factory resonator replaced by an x-pipe for increased volume and an improved throaty note.
  • 100% 304 Stainless Steel construction with a brushed finish.
  • Larger diameter piping for increased flow (70mm vs 65mm).
  • Computer controlled exhaust valve functionality is retained and limits noise during low speed driving and opens fully during high-load conditions.
  • Easy bolt-on installation with included mounting hardware.


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      05-13-2020, 02:01 PM   #2
Vulpe
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Well.. There it is boys. Glad to see it's finally out there.
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      05-13-2020, 02:10 PM   #3
CosmosMpower
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About darn time, too bad I already bought the AA midpipe. Is there an option to buy just the axleback system and if so does it mate with the AA midpipe?

Also is this more quiet than the Dinan resnoator delete/axle back for the N55 M2? Seems like it is from the video.
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      05-13-2020, 02:24 PM   #4
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Quote:
Originally Posted by CosmosMpower View Post
About darn time, too bad I already bought the AA midpipe. Is there an option to buy just the axleback system and if so does it mate with the AA midpipe?

Also is this more quiet than the Dinan resnoator delete/axle back for the N55 M2? Seems like it is from the video.
The axleback portion would not mate to the AA mid-pipe. Part of the reason its sold as a complete set.

Volume wise I would actually say the M2C is probably slightly louder. Tone wise they are pretty different however. The OG M2 exhaust is a bit deeper. S55 is just naturally more higher pitched.
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      05-13-2020, 02:34 PM   #5
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Quote:
Originally Posted by Dinan_Engineering View Post
The axleback portion would not mate to the AA mid-pipe. Part of the reason its sold as a complete set.

Volume wise I would actually say the M2C is probably slightly louder. Tone wise they are pretty different however. The OG M2 exhaust is a bit deeper. S55 is just naturally more higher pitched.
Would it mate with the stock midpipe or is the plan to never sell the axle back portion separately?

Last edited by CosmosMpower; 05-13-2020 at 02:51 PM..
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      05-13-2020, 02:34 PM   #6
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Quote:
Originally Posted by Dinan_Engineering View Post
Release Date: Available Now!
Glad to see you guys finally released it!

Was very happy with the setup on my old M2, pretty sure you guys will have success with this setup also.
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      05-13-2020, 03:10 PM   #7
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The only option i'm considering, and i dont even like buying exhausts.
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      05-13-2020, 04:04 PM   #8
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Glad it doesn’t have the M tax. So tempting.
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      05-13-2020, 04:18 PM   #9
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Quote:
Originally Posted by HazChem View Post
Glad it doesn’t have the M tax. So tempting.
I’m tempted too, but holding out for Active Autowerke’s equal length system 😳
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      05-13-2020, 04:23 PM   #10
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I wish Dinan could have made an equal length exhaust. Any possibility to add 14" of piping in there somewhere? Having said that, still a great looking exhaust.
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      05-13-2020, 04:25 PM   #11
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Quote:
Originally Posted by CosmosMpower View Post
Would it mate with the stock midpipe or is the plan to never sell the axle back portion separately?
Would not mate to the stock midpipe as we did not use the factory cut point in between the mid and axle back. For the life of me I don't remember the reason for doing this but then again its been almost 2 years since that development decision was made. I'll see if I can corner the main fabricator tomorrow from that project and see if he can shed some light on it. As such they will always be sold as a kit/pair.

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Originally Posted by infinitekidM2C View Post
The only option i'm considering, and i dont even like buying exhausts.
Damn. Pretty high praise. Might have made one of the engineers blush.
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      05-13-2020, 05:35 PM   #12
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Would the 3.5 inch tips from the N55 M2 system work and be able to be substituted for the 4inch?
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      05-13-2020, 06:50 PM   #13
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This was definitely top of my list a while ago. Unfortunately I'm likely to go with an equal length solution at the end of this year. Probably the AA Mid with some type of axleback combo. I would have preferred if this didn't need any cutting at all. Really good price though, around half the price of axlebacks while being a.. cat/opf back?
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      05-13-2020, 07:39 PM   #14
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Nice! Now if we could get some rolled-edge, slant-cut, logo-free, black-chrome tips to make it all look more refined and OEM, we'd be in business. Or alternatively, a carbon fiber option. The Dinan tips look a little too unfinished for my taste, and they scream aftermarket. I get it, tips are a personal preference, but it's shocking not a single company makes something that looks OEM, just beefier. This looks promising nonetheless, and it's a strong price point. It's tempting to do this with a Dinan+ tune and calling it a day. Perhaps a combo deal is in order?

A couple other questions.. Would any old 70mm inlet exhaust tips fit this exhaust? Any idea how much weight this saves, if any? Thanks!
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      05-13-2020, 08:28 PM   #15
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Quote:
Originally Posted by Fenerbahce View Post
Nice! Now if we could get some rolled-edge, slant-cut, logo-free, black-chrome tips to make it all look more refined and OEM, we'd be in business. Or alternatively, a carbon fiber option. The Dinan tips look a little too unfinished for my taste, and they scream aftermarket. I get it, tips are a personal preference, but it's shocking not a single company makes something that looks OEM, just beefier. This looks promising nonetheless, and it's a strong price point. It's tempting to do this with a Dinan+ tune and calling it a day. Perhaps a combo deal is in order?

A couple other questions.. Would any old 70mm inlet exhaust tips fit this exhaust? Any idea how much weight this saves, if any? Thanks!
If you want refined tips that and better sound than OEM while massively reducing weight, look no further than Akra Evo. But you gotta pay for quality. I personally like Dinan's system especially for the price. But having had the Akra on my F80 will be hard to not go with that again. Dinan value may be better though.
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      05-13-2020, 09:56 PM   #16
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AA midpipe says +18whp
and this whole kit is 6hp?
Not that it matters, just curious

Also, is it possible to use xph tips?

Last edited by MyM2See; 05-13-2020 at 10:11 PM..
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      05-13-2020, 10:20 PM   #17
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Reasonably priced, well made, sounds good. Like another poster I'm waiting to see how the equal length options shake out but this is definitely an option.
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      05-14-2020, 01:41 AM   #18
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Can anyone confirm the sag factor vs. OEM?
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      05-14-2020, 02:43 AM   #19
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Been waiting for this after initially hearing it months ago!
But... only ships within the US
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      05-14-2020, 02:53 AM   #20
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Quote:
Originally Posted by leftcoastq View Post
Can anyone confirm the sag factor vs. OEM?
Doesn't look like there's sag at all and according to Dinan above
"Gone is the unsightly sagging OE muffler of the M2 Competition. Replaced by a sleek and nearly invisible Dinan system making the hindquarters pleasing to the eye once again."
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      05-14-2020, 03:22 AM   #21
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Quote:
Originally Posted by leftcoastq View Post
Can anyone confirm the sag factor vs. OEM?

I mean...you can just use your eyes to confirm this looking at the first and last photo on their post.
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      05-14-2020, 03:54 AM   #22
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Quote:
Originally Posted by nioh_lbbm2 View Post
Quote:
Originally Posted by nesnah View Post
Been waiting for this after initially hearing it months ago!
But... only ships within the US
Quote:
Originally Posted by nesnah View Post
Quote:
Originally Posted by leftcoastq View Post
Can anyone confirm the sag factor vs. OEM?
Doesn't look like there's sag at all and according to Dinan above
"Gone is the unsightly sagging OE muffler of the M2 Competition. Replaced by a sleek and nearly invisible Dinan system making the hindquarters pleasing to the eye once again."

I mean...you can just use your eyes to confirm this looking at the first and last photo on their post.
Why you quoting me lol.. I know there's no sag. Was replying to the guy above.
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