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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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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
4.4 ★★★★★
Based on 2205 reviews
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Product Reviews
★★★★★ 4
Heavy.
Size: 2 Big Kid, Color: Pink/Glitter
They are beautiful, but too heavy to my kid.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 20, 2025
★★★★★ 5
Runs small
Size: 4 Big Kid, Color: Pearl Yellow
I wish they went past size 4 but cute nonetheless.
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Reviewed in the United States on August 29, 2024
★★★★★ 5
Compra excelente
Excelente y buen precio
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Reviewed in the United States on November 14, 2024
★★★★★ 5
The best shoe brand I have found for toddlers! Exceptional quality
Size: 12 Little Kid, Color: Black/Beige
I have ordered a handful of shoes from Mini Melissa in the past, so I knew to size up. I typically order 1 to 3 sizes larger than what my daughter currently wears depending on the season and type of shoe. For this shoe, I ordered about 3 sizes up, so that she will be able to wear them next spring / summer and I am glad I did. They are a little large on her now, but I know we will get a lot of use out of them next summer playing in the yard, pool and beach! As with all Mini Melissa shoes, the first thing I do when I open the box is smell them - their shoes have the most pleasant scent! They make the best jelly-like quality shoes; they are absolutely worth the price for the quality and style you receive. They hold up very well - they are the only shoes that she outgrows before the shoe breaks down or looks unwearable. My daughter has worn many of their styles, and has never gotten a blister or complained about the comfort. They are supportive, but flexible and even as young as she is, she gets so excited for cute shoes! I ordered the beige and black for something neutral we can wear with many different outfits and that won't show dirt on the sole. The color is exactly as pictured. I really appreciate that top straps are functional and adjustable. She has a bit of a wider foot, so this allows us to get even more use out of them. I am very glad I ordered these and will continue to tell my friends about what I find to be the best shoe brand for toddlers and kids!
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Reviewed in the United States on September 10, 2025
★★★★★ 3
Summer Slides
Size: 1 Big Kid, Color: Lilac/Glitter
-Slide is sturdy and well made;
-Color is very attractive and true to size;
-My Granddaughter loves them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2024
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