Dinan Valved Axle-Back Exhaust for 2021-2025 BMW M3/M4 D660-0093-BLK
Dinan Valved Axle-Back Exhaust for 2021-2025 BMW M3/M4 D660-0093-BLK
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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 |

Policies and FAQs
Return Policy
Fault reasons include but are not limited to:
- Buyer was shipped the wrong product
- Buyer was shipped a damaged product
- The product page had incorrect fitment and the part does not fit the Buyer's vehicle
Opened boxes, plastic bags, and other packaging are not considered damage (excluding single use items such as, but not limited to, liquids, software, and other components that cannot be reused/resealed).
FAQs
|Q. What is an Intermediate Brake Line?
|A. This is the line that runs from the front of the vehicle to the rear. On most vehicles it connects to a junction then you will have rear axle lines. On a few cars the intermediate lines will connect to the rear wheels. It is recommended to change the axle lines if you are replacing the intermediate lines.
|Q. What is included in a pre bent brake line kit?
|A. Our kits include all of the solid metal lines for that section of the vehicle
|Q. I need to return something - what's your return policy?
|A. We are happy to help! Please help us to help you by going to our return form and filling out the form as best as you can in order to request a return.
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Modern Day stands by our parts and is happy to accept returns within 30 days of purchase. Parts must be in new condition.
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If a part arrives damaged, or is defective, Please report it to us immediately. So we can handle it for your promptly.