SKU: 47645542879

Dinan Free Flow Axle-Back Exhaust for 2020-2024 BMW M340i/M440i D660-0085-BLK

Sale price$1079.97 Regular price$1199.97
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Description

Dinan Free Flow Axle-Back Exhaust for 2020-2024 BMW M340i/M440i D660-0085-BLKDinan Free Flow Axle Back Exhaust 2020 2024 BMW M340i M440i Quad exhaust tips have been a signature feature of the most powerful letter in the automotive sphere for quite some time. It is a hallmark of the brand that Dinan has long embraced, limiting its own quad tip usage to those M cars that already sported like tip quantity from the factory. That is? until now with the release of the Dinan axle back exhaust system for the G20 M340i and G2x M440i.

Dinan Free Flow Axle-Back Exhaust - 2020-2024 BMW M340i/M440i

Quad exhaust tips have been a signature feature of the most powerful letter in the automotive sphere for quite some time. It is a hallmark of the brand that Dinan has long embraced, limiting its own quad tip usage to those M cars that already sported like tip quantity from the factory. That is? until now with the release of the Dinan axle back exhaust system for the G20 M340i and G2x M440i.

Features:

  • More Power: +?6 HP @ 6600 RPM, + 5 LB-FT @ 6600 RPM
  • Enjoyably louder, sportier sound
  • Quad 4" diameter clamp-on, double-walled, ceramic black and laser engraved exhaust tips
  • 100% 304 stainless steel construction
  • Larger diameter piping for increased flow (76mm vs 70mm)
  • 4 lbs lighter than the stock system
  • Stock exhaust valve actuator reused and another valve/actuator added to the opposing side promoting even flow regardless of valve position
  • Computer controlled exhaust valves are retained and limit noise during low speed driving and open 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

Specs:

Brand Dinan
Dinan Point Value 3
Emission Code 5
Height 10
Labor Time (Hours) 2.5
Length 54
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
Weight 68
Width 29

Application:

Year Make Model Submodel
2020-2024 BMW M340i Base
2020-2024 BMW M340i xDrive Base
2021-2024 BMW M440i xDrive Base
2021-2024 BMW M440i Base
2022-2024 BMW M440i Base
2022-2024 BMW M440i xDrive Gran Coupe Base
2022-2024 BMW M440i Gran Coupe Base
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 47645542879

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PJ Rufus
Birmingham, US
★★★★★ 5
Fit my 2018 CRV 1.5 turbo
I’m not a car expert, my maintenance expertise involves air in the tires, adding oil and washer fluid, and these filters. Found a video to show me how, it was easy. These fit my car, and I don’t see any difference in these and the filters they replaced, except of course, these are cleaner. Very happy.
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Reviewed in the United States on December 23, 2025
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kevin
Houston, US
★★★★★ 5
Great price
Perfect fit great quality
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Reviewed in the United States on May 19, 2026
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Matt Long
Lexington, US
★★★★★ 5
Perfect fit
Great quality filters, both fit snug
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Reviewed in the United States on May 6, 2026
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Robert
Birmingham, US
★★★★★ 5
Great price
2018 Honda Civic EXL Turbo great fit, great price!
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Reviewed in the United States on March 15, 2026
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stuart a hannan
Draper, US
★★★★★ 4
Good fit.
Good fit.
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Reviewed in the United States on October 29, 2025

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