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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17
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Description
Dinan High Flow Middle Exhaust for 2021-2025 BMW M3/M4 D660-0094Dinan High Flow Middle Exhaust 2021 2025 BMW M3 M4 Looking to elevate the external acoustics of your G8x but want to upgrade in stages and or not break the bank? Features: Smoother, louder and sportier sound 76mm (3 inch) tubing replaces stock 70mm (2. 75 inch) tubing for free flow Deletes resonators between the secondary catalysts and rear muffler for increased volume Includes X pipe crossover made from mandrel bent tubing for minimum restriction 5
Dinan High Flow Middle Exhaust - 2021-2025 BMW M3/M4
Looking to elevate the external acoustics of your G8x but want to upgrade in stages and/or not break the bank?
Features:
- Smoother, louder and sportier sound
- 76mm (3-inch) tubing replaces stock 70mm (2.75-inch) tubing for free flow
- Deletes resonators between the secondary catalysts and rear muffler for increased volume
- Includes X-pipe crossover made from mandrel bent tubing for minimum restriction
- 5-pounds lighter than the stock mid-section (Stock: 22-pounds vs. Dinan: 17-pounds)
- 100% 304 stainless steel construction
- Factory-like fitment with included mounting hardware
Specs:
| Brand | Dinan |
|---|---|
| Dinan Point Value | 1 |
| Emission Code | 5 |
| Labor Time (Hours) | 1.5 |
| Material | 304 Stainless Steel |
| Product Type | Mid-Pipe |
| Sale Category | Exhaust |
| 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 xDrive |
| 2021-2025 | BMW | M4 | Competition |
| 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
4.4 ★★★★★
Based on 851 reviews
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Product Reviews
★★★★★ 5
Perfect fit
Size: Large, Color: (100) White / White / Black
Durable and comfortable. Size works well. Very soft with nice thickness for training. Fairly long lasting
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Reviewed in the United States on February 12, 2026
★★★★★ 5
Post-COVID Sock Hunt: Finally a Win
Size: Medium, Color: (001) Black / Black / White
Ever since COVID, I haven’t been able to find a pair of socks that hold up for more than a few months. Brands like UA, Adidas, and others seem to have cut corners—likely in response to inflation—by downgrading materials and labor rather than raising prices. The result? Socks that wear thin, rip easily, or lose shape fast.
These, however, have been a pleasant surprise. I’ve been wearing them for a few weeks and so far, they’re holding strong. You can tell some cost-saving measures were still made—certain areas feel slightly thinner—but overall, the construction is solid.
A key win: they stay on. These are ankle socks (not “no-shows”), and they hug the ankle securely. That’s a huge plus in a world where most post-COVID no-shows slide off halfway through the day.
We may never get back to the pre-COVID quality standards without paying a premium, but for now, these are a reliable choice.
Ratings:
• No slipping: 10/10
• Price: 7/10
• Durability (so far): No pilling or loose threads — promising start.
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Reviewed in the United States on March 24, 2025
★★★★★ 5
Great Quality and Stylish
Size: Large, Color: (001) Black / Black / White
Exactly what I was looking for. I don’t like socks that are no-show that your ankles rub on the shoe. These are taller than that but shorter than socks that go up and over the ankle. They’re comfortable, good quality, and pretty thick. They’re form fitting m, but not compression. I dint like compression socks, and these are tight, but not too tight.
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Reviewed in the United States on June 5, 2025
★★★★★ 5
Affordable and good quality socks
Size: Medium, Color: (001) Black / Black / White
Good quality!
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Reviewed in the United States on May 9, 2026
★★★★★ 4
Socks
Size: Large, Color: (001) Black / Black / White
They are very comfortable and fit just right
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Reviewed in the United States on September 3, 2025