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XBimmers | BMW X3 Forum BMW X3/X4 Forums BMW X3M (F97) and X4M (F98) General Forum (2018+) NEW RELEASE: Dinan BMW F97 X3M and F98 X4M Axle Back Exhaust Systems

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      07-14-2020, 02:56 PM   #1
Dinan_Engineering
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NEW RELEASE: Dinan BMW F97 X3M and F98 X4M Axle Back Exhaust Systems

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Dinan BMW F97 X3M and F98 X4M Axle Back Exhaust Systems

Part Number(s): D660-0086 & D660-0086-BLK

Applications:
  • 2020-2021 F97 X3M
  • 2020-2021 F97 X3M Competition
  • 2020-2021 F98 X4M
  • 2020-2021 F98 X4M Competition
Product Page(s) / Pricing:Release Date: Available Now!

Description: The baby Ms of the X family just got a bit more big brother like. With more volume and a deeper, more aggressive note courtesy of the Dinan axle back exhaust system, the F97/F98 now stand on the precipice of rivaling, or even surpassing, its V8 siblings --- at least, in regards to sound. With an intoxicating and menacing sound befitting of a high performance SUV the X3M/X4M holds its own amongst the pantheon of more traditional Ms.

In order to achieve the deep and throaty signature Dinan sound the system incorporates larger 76mm tubing (vs 70mm stock) that allows freer flow through the entirety of the system but specifically to both outer pipes when the enlarged valves are open. The resulting flow and sound mimics an awe-inspiring straight pipe solution with a deeper, fuller tone, a defining element of all Dinan exhausts. In contradiction to the aggressiveness resulting from open valves, when the valves are closed, all gasses are forced into the muffler for sound deadening and exit the two inner tips. Regardless of valve position, the intimate nature of the interior is retained so conversation can continue without an excessively loud drone courtesy of drone abatement technologies housed within the can. With the Dinan exhaust equipped on the X3M/X4M you get the best of both worlds; aggressive tone/sound and civility

Perhaps equally important to the sound of the installed Dinan axle back system are the resulting aesthetics. With a nearly perfect symmetrical design, the raw muffler and pipe routing are pleasing to the eye even when the matching proportions are only partially visible after install. The piping culminates into four massive 114mm (4.5) tips that fill up the previously spacious factory cut out in the valance without appearing to be oversized and unnatural. The imposing tips utilize a new tip design with an inverted clamp neck. The new style allows for two very important things to happen. The first is the ability to have a longer tip sleeve length without sacrificing real estate for a clamp neck thus allowing larger tips even when there is limited straight pipe to clamp on to. Secondly, the interior clamp neck means that the clamp itself is almost completely hidden from view for an unblemished install. Dinan has retained its signature straight cut tip design, safeguarding its unique and elegant styling position amongst a crowded marketplace full of angle cuts. With systems available with either black ceramic coated or polished clamp-on, and laser engraved exhaust tips, there is a version that is sure to meet your individual aesthetic needs.

Features/Benefits:
  • More Power: Max gains of +8 HP @ 6600 RPM, +6 FT-LB @ 6600 RPM.
  • Enjoyably louder, sportier sound.
  • Quad 4.5" (114 mm) diameter clamp-on, double-walled laser engraved exhaust tips. Available in ceramic black or polished.
  • Tuck-it tip design ensures a nearly flawless and unencumbered visual appearance
  • 100% 304 brushed stainless steel construction w/ TIG welding.
  • Larger diameter piping for increased flow (76mm vs 70mm).
  • 5 lbs lighter than the stock system.
  • Computer controlled exhaust valves retained, limiting noise during low speed driving and opening fully during high-load conditions.
  • Twin exhaust valves are a whopping 76mm diameter, making them 30% less restrictive than the OE valves.
  • Easy bolt-on installation with included mounting hardware.


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      07-14-2020, 03:17 PM   #2
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This is awesome. Thanks for sharing!
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      07-14-2020, 03:31 PM   #3
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Beautiful!
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      07-14-2020, 05:39 PM   #4
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Sounds fantastic!
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      07-14-2020, 06:14 PM   #5
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      07-14-2020, 06:20 PM   #6
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Considering the price and sound, this has to be the best exhaust available. Nice work!
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      07-14-2020, 06:49 PM   #7
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Wish there was something like this for the 30i. would love my 30i to sound like the x2 m35i....
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      07-14-2020, 07:01 PM   #8
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Very nice, any cutting required?
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      07-14-2020, 07:32 PM   #9
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Quote:
Originally Posted by FSociety View Post
Very nice, any cutting required?
Unless it's full catback system, I'm 95% sure there would have to be cutting.
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      07-14-2020, 07:39 PM   #10
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Quote:
Originally Posted by pluckydks View Post
Quote:
Originally Posted by FSociety View Post
Very nice, any cutting required?
Unless it's full catback system, I'm 95% sure there would have to be cutting.
Quote:
Originally Posted by FSociety View Post
Very nice, any cutting required?
Correct. Axle back so cutting will be required. A full complete cat-back would be the only way to avoid that reality. We will also be releasing a resonator delete/x-pipe to accompany the system for those that want a bit more volume as well — it got delayed a bit unfortunately but it's coming.
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      07-14-2020, 07:40 PM   #11
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Quote:
Originally Posted by Dinan_Engineering View Post
Correct. Axle back so cutting will be required. A full complete cat-back would be the only way to avoid that reality. We will also be releasing a resonator delete/x-pipe to accompany the system for those that want a bit more volume as well it got delayed a bit unfortunately but it's coming.
Love the massive 114mm tips!
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      07-14-2020, 07:45 PM   #12
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Quote:
Originally Posted by Dinan_Engineering View Post
Quote:
Originally Posted by pluckydks View Post
Quote:
Originally Posted by FSociety View Post
Very nice, any cutting required?
Unless it's full catback system, I'm 95% sure there would have to be cutting.
Quote:
Originally Posted by FSociety View Post
Very nice, any cutting required?
Correct. Axle back so cutting will be required. A full complete cat-back would be the only way to avoid that reality. We will also be releasing a resonator delete/x-pipe to accompany the system for those that want a bit more volume as well — it got delayed a bit unfortunately but it's coming.
Quote:
Originally Posted by Dinan_Engineering View Post
Quote:
Originally Posted by pluckydks View Post
Quote:
Originally Posted by FSociety View Post
Very nice, any cutting required?
Unless it's full catback system, I'm 95% sure there would have to be cutting.
Quote:
Originally Posted by FSociety View Post
Very nice, any cutting required?
Correct. Axle back so cutting will be required. A full complete cat-back would be the only way to avoid that reality. We will also be releasing a resonator delete/x-pipe to accompany the system for those that want a bit more volume as well — it got delayed a bit unfortunately but it's coming.
Will the resonator delete be available as a stand alone option, or is it designed to only mate to the Dinan exhaust
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      07-14-2020, 07:48 PM   #13
Dinan_Engineering
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Quote:
Originally Posted by skioutwest View Post
Quote:
Originally Posted by Dinan_Engineering View Post
Quote:
Originally Posted by pluckydks View Post
Quote:
Originally Posted by FSociety View Post
Very nice, any cutting required?
Unless it's full catback system, I'm 95% sure there would have to be cutting.
Quote:
Originally Posted by FSociety View Post
Very nice, any cutting required?
Correct. Axle back so cutting will be required. A full complete cat-back would be the only way to avoid that reality. We will also be releasing a resonator delete/x-pipe to accompany the system for those that want a bit more volume as well — it got delayed a bit unfortunately but it's coming.
Quote:
Originally Posted by Dinan_Engineering View Post
Quote:
Originally Posted by pluckydks View Post
Quote:
Originally Posted by FSociety View Post
Very nice, any cutting required?
Unless it's full catback system, I'm 95% sure there would have to be cutting.
Quote:
Originally Posted by FSociety View Post
Very nice, any cutting required?
Correct. Axle back so cutting will be required. A full complete cat-back would be the only way to avoid that reality. We will also be releasing a resonator delete/x-pipe to accompany the system for those that want a bit more volume as well — it got delayed a bit unfortunately but it's coming.
Will the resonator delete be available as a stand alone option, or is it designed to only mate to the Dinan exhaust
Can be stand alone.
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      07-15-2020, 06:52 AM   #14
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Any idea on whether BMW dealers would consider this to void the factory warranty?
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      07-15-2020, 11:02 AM   #15
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Quote:
Originally Posted by bernpromos View Post
Any idea on whether BMW dealers would consider this to void the factory warranty?
There is almost no circumstance under which an exhaust should void your warranty other than any warranty on your exhaust system, or like, if it fell off while you were driving and damaged and bunch of other stuff, which is unlikely, but, I suppose, possible.
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      07-15-2020, 11:09 AM   #16
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Looks great with the extra wide exhaust tips. Any issues with fitment for m40i ?
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      07-15-2020, 11:26 AM   #17
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Quote:
Originally Posted by smithf80 View Post
Quote:
Originally Posted by bernpromos View Post
Any idea on whether BMW dealers would consider this to void the factory warranty?
There is almost no circumstance under which an exhaust should void your warranty other than any warranty on your exhaust system, or like, if it fell off while you were driving and damaged and bunch of other stuff, which is unlikely, but, I suppose, possible.
I know of someone that got a crack head and BMW NA said due to CAI. Owner lost.
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      07-15-2020, 11:28 AM   #18
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Quote:
Originally Posted by knepsterd View Post
Quote:
Originally Posted by smithf80 View Post
Quote:
Originally Posted by bernpromos View Post
Any idea on whether BMW dealers would consider this to void the factory warranty?
There is almost no circumstance under which an exhaust should void your warranty other than any warranty on your exhaust system, or like, if it fell off while you were driving and damaged and bunch of other stuff, which is unlikely, but, I suppose, possible.
I know of someone that got a crack head and BMW NA said due to CAI. Owner lost.
Any aftermarket is still a possible red flag if BMW NA wants to be an ass. The money alone to take to court and fight is stupid. So going in there and taking the aftermarket route is always a remote possibly. Exhaust is more than likely bad cats need to be replaced on your dime.
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      07-15-2020, 11:48 AM   #19
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Quote:
Originally Posted by knepsterd View Post
Any aftermarket is still a possible red flag if BMW NA wants to be an ass. The money alone to take to court and fight is stupid. So going in there and taking the aftermarket route is always a remote possibly. Exhaust is more than likely bad cats need to be replaced on your dime.
BMW NA is not stupid. BMW lives off mod-happy, returning customers like us and they will never us flag us for petty stuff like aftermarket exhaust. My BMW dealer even offered me to order and install the Akrapovic exhaust.
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      07-15-2020, 12:09 PM   #20
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Quote:
Originally Posted by AlexFL View Post
Quote:
Originally Posted by knepsterd View Post
Any aftermarket is still a possible red flag if BMW NA wants to be an ass. The money alone to take to court and fight is stupid. So going in there and taking the aftermarket route is always a remote possibly. Exhaust is more than likely bad cats need to be replaced on your dime.
BMW NA is not stupid. BMW lives off mod-happy, returning customers like us and they will never us flag us for petty stuff like aftermarket exhaust. My BMW dealer even offered me to order and install the Akrapovic exhaust.
It's a case by case, dealer and SA. At least up here in NY NJ tri state. Some dealers are more mod happy, others a downright Debbie downers.
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      07-15-2020, 12:14 PM   #21
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Quote:
Originally Posted by knepsterd View Post
It's a case by case, dealer and SA. At least up here in NY NJ tri state. Some dealers are more mod happy, others a downright Debbie downers.
The Debbie downers should not sell any M cars. My dealer told me that allegedly up to 50% of all sold M cars are getting performance modded (exhaust, tune etc.) by their owners. Mod-happy, performance-oriented buyers buy BMW M cars... that's how it works.
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      07-15-2020, 12:44 PM   #22
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Quote:
Originally Posted by AlexFL View Post
The Debbie downers should not sell any M cars. My dealer told me that allegedly up to 50% of all sold M cars are getting performance modded (exhaust, tune etc.) by their owners. Mod-happy, performance-oriented buyers buy BMW M cars... that's how it works.
The dealer for my E46 M3 installed my exhaust for $75. After inflation, that's probably $150 now lol.
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