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Description
Dinan Valved Axle-Back Exhaust for 2021-2025 BMW M3/M4 D660-0093-BLKDinan Valved Axle Back Exhaust 2021 2025 BMW M3 M4 The G8x M3 M4 is arguably superior in every category to its predecessor but in most, if not all, circles the biggest downfall of the platform is in the sound department. Like the F8x before it with the S55, the S58 in the current generation leaves a lot to be desired. While a step in the right direction from its forerunner the stock vocals still carry far too much rasp that do not fully articulate the
Dinan Valved Axle-Back Exhaust - 2021-2025 BMW M3/M4
The G8x M3/M4 is arguably superior in every category to its predecessor but in most, if not all, circles the biggest downfall of the platform is in the sound department. Like the F8x before it with the S55, the S58 in the current generation leaves a lot to be desired. While a step in the right direction from its forerunner the stock vocals still carry far too much rasp that do not fully articulate the refined aggressiveness typical of the brands signature performance models. Dinan corrects this weakness with a valved axle back exhaust system that elevates the tone to a deeper, more meaningful note while also delivering an extra level of amplification above and beyond its stock counterpart. Coupled with the optional middle exhaust / x-pipe for the platform an even louder, smoother, and fuller soundtrack is possible.
Features:
- Maximum gains of +6 HP and +5 lb-ft of torque
- Enjoyably louder, sportier sound
- Drone abatement technologies used to reduce cabin resonance
- Four, diffuser filling, 4.5-inch (114mm) double-walled, black ceramic coated clamp-on tips with laser engraved Dinan logo
- Larger diameter piping for increased flow (76mm vs. 70mm)
- 6-pounds lighter than the stock axle back (Stock: 44-pounds vs. Dinan: 38-pounds)
- Stock exhaust valve actuators reused, and operation of exhaust valve is unchanged so exhaust tone can be adjusted via the M-drive settings
- Computer controlled exhaust valves are retained and limit noise during low-speed driving and open fully during high-load conditions
- 100% 304 Stainless Steel construction
- Factory-like fitment with included mounting hardware
Specs:
| Brand | Dinan |
|---|---|
| Dinan Point Value | 3 |
| Emission Code | 5 |
| Labor Time (Hours) | 2.7 |
| Max HP Gain | 6 @ 6600 RPM |
| Max Torque (lb-ft) Gain | 5 @ 6600 RPM |
| Product Type | Axle-Back Exhaust |
| Sale Category | Exhaust |
| Tip Finish | Black Ceramic Coated |
| Warning | California Proposition 65 |
Application:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2021-2025 | BMW | M3 | Base |
| 2021-2025 | BMW | M3 | Competition |
| 2022-2025 | BMW | M3 | Competition xDrive |
| 2021-2025 | BMW | M4 | Base |
| 2021-2025 | BMW | M4 | Competition |
| 2021-2025 | BMW | M4 | Competition xDrive |
| 2022-2025 | BMW | M4 | Competition xDrive |
| 2022-2024 | BMW | M4 | Competition |
| 2023-2025 | BMW | M4 | CSL |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 1039 reviews
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Product Reviews
★★★★★ 5
Very nice quality
Size: 2' x 3' (Sheepskin shape), Color: Creamy White, Size: 2' x 3' (Sheepskin shape), Color: Creamy White
I ordered three of these, and they arrived promptly and very well packaged in a vacuum seal pack. Once you pull them out, shake them and fluff them a little bit they lose their wrinkles pretty quickly. They seem to be very good quality and are authentically sheepskin. The “white” has a tiny little bit of a yellow undertone, which is what I expected since it’s basically a dyed sheep skin. I would call the white color “natural” rather than white white. They are very thick and were a good price. I ordered two of the three foot-long hides and one 6ft foot hide. One of the hides had a slight odor to it that reminded me a little bit of eggs. It’s been laying on my bench all night and 24 hours later there is no smell. The other two hides had zero smell at all. I think it’s just a little leftover chemical smell from the treatment of the hide when they get it ready. It wasn’t overwhelming or overpowering. If you’re looking for the ultimate SUPER plush sheepskin, I recommend the Overland Sheepskin Company. However, for what I need these for which is just something to throw over my dining room table bench for a little cushion and aesthetics. It’s absolutely perfect and the right price point.
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Reviewed in the United States on February 27, 2025
★★★★★ 5
Beautiful Good Quality Sheepskin, Beautifully Packaged
Size: 2' x 6' (Sheepskin shape), Color: Creamy White, Size: 2' x 6' (Sheepskin shape), Color: Creamy White
Very nicely packaged and presented sheepskin rug. Seems like very good quality and is just as I imagined it would be based on my previous experiences with sheepskin.
I don’t think it’s as soft as others seemed to think but it has been chemically processed and it is very similar in texture to what I remember from past experiences with sheepskin.
I got this for the kitties to nap on - one seemed proud of me for bringing home a pelt and went into hunt mode. The other looked at me suspiciously like he didn’t really know me at all and was afraid I could be eyeing him for his fur!
Hopefully once they both adjust they’ll enjoy napping on it 🙀😻
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Reviewed in the United States on March 19, 2026
★★★★★ 5
Full of beauty!
Size: 2' x 6' (Sheepskin shape), Color: Creamy White
This company takes pride in their work. The sheep skin covering is beyond what anyone could imagine. I purchased this for medicinal purposes. I found out I have SI joint dysfunction. And this sheepskin helps to relieve pressure points so I am using this as a chair covering for when I sit. The product came in a big box and then a plastic bag and then a third, well covered, plastic bag to protect the sheepskin. You will not be disappointed if you purchase this covering. The price was excellent. It will take your breath away. Very happy with my purchase. There was no odor when I opened the package. Many thanks for an excellent product and helping me to be more comfortable when I sit for short periods of time. :)
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Reviewed in the United States on January 12, 2026
★★★★★ 4
Nice, but almost feels faux to me
Size: 2' x 6' (Sheepskin shape), Color: Pink, Size: 2' x 6' (Sheepskin shape), Color: Pink
I like it, but it says it’s real, and I believe them, but it feels like it is faux. I’ve owned a fake one before and it feels similar. Please know I am not saying it is not real. I guess the fake was well done!
It’s super long and I am still on the fence if I want it this long. I’ve taken a pic here, but right now it is wrapped in the package in case I need to return.
It is soft and pretty, but I’m not sure that Barbie pink is my best choice lol. Usually I would pair it with a mid century modern bedspread that is chenille, with a little pink so it works well but not too matchy matchy. I wish I had taken a pic with that bedspread because the bit of pink on the bedspread looks very nice against the rug. So let me apologize for having it with an ugly bedspread.
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Reviewed in the United States on August 21, 2025
★★★★★ 5
This is a wonderful sheepskin
Size: 2' x 3' (Sheepskin shape), Color: Creamy White
This sheepskin is so soft and comfortable. I use it on my couch and it really helped me stay warm in the winter months.
Super glad I bought it.
My cat loves it too
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Reviewed in the United States on April 13, 2026
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