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Description
Dinan Free Flow Axle-Back Exhaust for 2020-2024 BMW M340i/M440i D660-0085Dinan 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, polished 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 |
| Tip Finish | Polished |
| 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:
- 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
4.5 ★★★★★
Based on 500 reviews
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Product Reviews
★★★★★ 5
great product
Style: AVR-S770H
I bought the Denon S770H to replace my 20 year old Optimus receiver. I wasn't looking to go crazy on cost but wasn't afraid to put up a little extra money either so I chose middle of the road for Denon. When I put this in my cart I was expecting to pay $649 plus but was pleasantly surprised to see a $200 price drop by the time I pulled the trigger on the purchase. Product came quick and I set it up the next day. I am only using the 5.1 set up at this time but the way the on screen set up walks you through everything it is a breeze. The AVR analyzes each speaker position individually to optimize the settings and provides the best balances possible. This receiver takes my old speakers to a new level of enjoyment without buying anything else (at this time). Watching a Football game it makes the sound come as though you are actually in the stadium. Love it! Still haven't tried all of the options for inputs yet, but I'm sure there will not be any disappointments. I would highly recommend Denon.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 11, 2023
★★★★★ 5
Great for UTV rear light install!
Size: 16AWG -10FT 2Pin DT
I had a set of 3” Nilight pod lights with wiring harness to install as rear lights on my Ranger 570 SP. The Nilight harness with relay was great! But it was too short to keep the relay and fuse in the front compartment on the pulse panel. These were the perfect solution!
The extensions are plugged in under the tunnel to each of the individual light leads from the Nilight harness. And there was just enough length to run behind the seat back, up the driver side roll bar, and to each light. (Had about 1’ too much for passenger side light, so should be fine for full-size Ranger too.)
Now have a weatherproof, factory quality installation with no splices or solder joints. The only mods I had to make for the entire install (not related to these extension cables) were: 1) Cutting the ring lugs off and adding waterproof heat shrink butt splices to Polaris pulse plug, and 2) Buying a factory-style Carling L1 illuminated switch to replace the round switch provided. (This is a direct plug and play too since the Nilight switch wiring has 1/4” faston connectors.)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 27, 2024
★★★★★ 5
Exactly what I needed
Size: 16AWG -10FT 2Pin DT
This was perfect for me. I had two lights bars in my rear bumper and needed to extend the harness to my fuse block. Great value
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Reviewed in the United States on January 19, 2026
★★★★★ 5
10 foot long
Size: 16AWG -10FT 2Pin DT
Worked great. Plugged in with no problem.
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Reviewed in the United States on April 12, 2026
★★★★★ 5
Affordable
Size: 16AWG -10FT 2Pin DT
Used them to install Morimoto 2 Banger pods on my vehicle. Casing for the wires is thick enough that will stand the weather and abrasion. I spliced them to make just one run, added braided sleeving (for looks and additional protection). The wire quality and thickness made the connection with waterproof connectors strong and durable. Saved me around 20 dollars as compared to brand name wires.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 24, 2024
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