Name: Dinan 21-27 BMW M3/M4 (G80/G82/G83) Valved Axleback Exhaust System - Black Tips
Brand: Dinan
SKU: DNND660-0093-BLK
Price: 2349.95 USD
Availability: InStock

Dinan 21-27 BMW M3/M4 (G80/G82/G83) Valved Axleback Exhaust System - Black Tips

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Dinan 21-27 BMW M3/M4 (G80/G82/G83) Valved Axleback Exhaust System - Black Tips

Dinan
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SKU: DNND660-0093-BLK
Barcode: 090127141892

Through extensive development and testing nearly every possible permutation of the exhaust was attempted. Unlike the previous generation where cabin... Read more

3 in stock 2 day delivery

$2,643.95 $2,349.95

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Shipped today? Order within: Jul 17, 2026 16:00:00 -0400

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Description

Through extensive development and testing nearly every possible permutation of the exhaust was attempted. Unlike the previous generation where cabin sound/drone was largely unchanged between the sedan and the coupe, that was not the case with the G8x chassis'. This caused countless iterations to be attempted in the quest for a common system that not only sounded superb externally but one that also didn't introduce an overbearing internal cabin drone on either body type. The result is a system we are confident will be coveted by all for years to come. To achieve desired sound volume and tone worthy of the G8x M3/M4 the tubing was enlarged to 76mm (vs 70mm stock) to allow freer flow, and reduce backpressure, throughout the entirety of the system. The larger piping gives way to multiple pathways as it nears the rear of the vehicle -- the choice of which is utilized determined by the factory exhaust valves which are retained. When valves are closed, flow is directed into the Dinan muffler, where absorption and reactive technologies are used, and exit out the two inner tips. This limits noise during low-speed driving and produces a more subdued, albeit deeper, and agreeable note. However, when the valves are open during high-load conditions the bulk of the gases bypass the muffler altogether for a near straight pipe design and maximum aural enjoyment to be achieved. It's the perfect marriage for all tastes and allows civility or impassioned aggression depending on what the situation demands. The combination is one Dinan has deemed fitting for the marques signature performance models that cater to the tasteful enthusiast who demand the best for all situations.

This Part Fits:

Year	Make	Model	Submodel
2021-2026	BMW	M3	Base
2021-2026	BMW	M3	Competition
2022-2026	BMW	M3	Competition xDrive
2021-2026	BMW	M4	Base
2021-2026	BMW	M4	Competition
2022-2026	BMW	M4	Competition xDrive
2023	BMW	M4	CSL

Specifications

Type: Aftermarket
Usage: Street Use & Speedway

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When will my order be delivered?

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Orders may be returned or exchanged within 15 days of receiving the parcel, provided the items are in their original, resalable condition. Customers are responsible for return shipping costs unless the return is due to an error made by Gearhead Motoring, in which case we will cover all shipping costs. Please wait for an RMA number and return instructions before sending any item back. Items returned without an RMA will not be accepted.

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If your shipment arrives damaged, whether visible upon delivery or discovered after opening the package, please follow these steps immediately:

Contact Gearhead Motoring as soon as possible and submit a damage claim at shipping@gearheadmotoring.com
Keep all original packaging materials, including the box and packing materials.
Make a list of any damaged or missing items.
Take clear photos of the damaged packaging and the affected products.
If the delivery driver cannot wait for an inspection, or does not allow you to inspect the shipment, write "SUBJECT TO INSPECTION" on the delivery receipt before signing and ask the driver to acknowledge it.

Once we receive the required information, Gearhead Motoring will work directly with the shipping carrier and arrange a pickup if necessary. Do not return any merchandise without prior written authorization and an RMA number from Gearhead Motoring.

After the returned product is received and inspected, we will notify you whether the item will be replaced, or if a refund or store credit will be issued.

Important: By signing and accepting a freight shipment, you may waive your right to file a damage claim for any damage not noted on the delivery receipt. We strongly recommend inspecting all freight shipments upon arrival, even if the outer packaging appears to be in good condition.