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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:
- 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
4.8 ★★★★★
Based on 1822 reviews
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Product Reviews
★★★★★ 5
Great product
Style: Stereo Receiver, Configuration: Receiver
This is a great basic receiver. It's very easy to understand, setup and operate. This receiver sounds excellent and includes Bluetooth so I can stream Apple Music and Spotify to the receiver. My only negative comments would be that the speaker connections are the spring-loaded terminals which require thin gauge speaker wires or Flex Pin Banana Plugs. Also, you should be aware the FM Antenna (provided) is a wire antenna utilizing a strange plug-in adapter. It was perfectly adequate for what I needed however I think it could be an issue if you were in a remote area that required a mast antenna.
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Reviewed in the United States on April 9, 2026
★★★★★ 5
Shockingly Great: Do Not Be Skeptical Of The Ultra Low Price
Style: Stereo Receiver, Configuration: Receiver
Do not allow the extremely low price on this Sony STRDH 190 stereo receiver to in any way prejudice you against considering it as a wonderful entry-level stereo receiver. I have purchased thousands of products on Amazon over the past 25 years, and I cannot think of any item that pleasantly surprised me more profoundly than this one. I also purchased the matching (style) Sony turntable PS-LX310BT which works perfectly with the STRDH 190 receiver.
Sony's lowest priced receiver now sells for the astounding bargain price of only around $200, though I caught it on sale for closer to $150... and as impossible as this is the believe, it has in recent years gone on sale for as little as $99(!) I have no idea how Sony makes a profit at these price levels.
Now I know, most people would think, "there is just no way a $200 receiver is high quality"... but I am telling you, that is dead wrong in this case, and you should prepare to be blown away by what you get at this crazy low price point.
This is NOT a no frills unit. It is feature packed.
It has connections for TWO PAIR (four total) speakers, and PLENTY of clean no-distortion power to drive all four speakers to loud and clear volume levels. It also has an A/B speaker switch to play through speaker set A, or speaker set B, or all four speakers at once.
It has a phono stage pre-amp which is actually very good. Seriously, it is much better than the phono stage pre-amp built into my Emotiva integrated amp for which I paid $1,000. It plays vinyl loud with no distortion. You will NOT need an external phono pre-amp.
It has excellent Bluetooth wireless connectivity built in... no trouble getting it to instantly recognized sources and play them perfectly. You can play all the music on your iPhone or other digital device, wirelessly.
It has a huge allotment of extra connections, ... a whopping FOUR inputs... so you can also hook up a CD player, and another external device of your choice, and another one after that, and another one after that! (WOW). And that's is not counting your PHONO input which is actually a fifth input connection. Astounding accommodation of external sources at this (or almost any) price point.
If you are a dinosaur who listens to FM ... it's got an FM receiver with 30 station presets, and an output to hook up a proper external FM antenna, and a long-wire FM antenna is included in the package
Sony says the "HiRes" audio produced by this unit is "superior to CD quality"... though I am not sure how to measure that claim, especially if the extrnal source you are using is a CD player.
It comes with a very high quality remote control, with real buttons, and many features.
You can actually program each of your external sources to appear in the illuminated display as the specific names you want, rather than a generic default source name like "CD".
The low price may raise an eyebrow, and the fairly light weight (much heavier on one side than on the other curiously) nature of the unit may also cause doubt... but only until you set it up and start listening, and your jaw drops.
I would put this sub-$200 receiver up against any receiver on the market priced under $800, (and probably several of them priced at twice that much!) and I believe you will not be disappointed in the sound quality of Sony's entry-level unit. You certainly will NEVER find another receiver anywhere near this price point with so many features and inputs... all of which work flawlessly.
This is the greatest bargain in the world of affordably-priced HiFi equipment.
It is easily worth multiple times the asking price.
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Reviewed in the United States on May 18, 2025
★★★★★ 5
Overall Excellent - Thorough Review - READ ME
Style: Stereo Receiver, Configuration: Receiver
I'm not an audiophile per se, but I do have elevated listening preferences. I enjoy finding the value in devices, and system configs. So that's the reason I tried this more budget-friendly receiver.
Aesthetics: The look is very sleek and modern, which is great but sometimes I miss the nostalgia of more knobs. There is no base/treble knob and most everything is controlled by remote. That's fine I suppose, just be aware. The volume knob is very large and traditional which I love, but is also very stiff and not buttery smooth like you might expect. Perhaps that will break-in.
Sound Quality: Wow, this sounds incredible. There is definitely a DSP happening that is noticeably awesome. It's referred to by Sony as Pure Direct. If you want to by-pass this, you can, but you'll hear right away the difference is major. I'm using simple Klipsch bookshelf speakers, and my expectations are surpassed on how much they come to life with bright and rich sound. Definitely a nice pairing for those shopping for speakers along with this unit. Overall the SQ is gonna be tough to beat without spending exponentially more.
Remote: The remote is nice, sleek, and has what you need to quickly access. No complaints there.
Installation: Takes minutes, super easy. Didn't follow any instructions due to my general confidence hooking up home audio gear.
Overall: I highly recommend this one, and I'm picky. Initially, I fully expected to return this receiver, but plan to keep it. The only thing that may change my mind, is if I miss the nostalgia... then I'll have to go vintage. But no way a vintage receiver will sound this good. Props to Sony. Well done :)
A+
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Reviewed in the United States on January 18, 2024
★★★★★ 5
Nice amplifier for the cost.
Style: Stereo Receiver, Configuration: Receiver
I had been using my Marantz model 22 receiver now for a couple years now with the TV, dvd player, and youtube music from my tablet. I like lots of knots and switches on my audio gear, I'm an engineer. I was getting tired of the seemingly endless up and down to adjust volume and whatever. And my inputs on the Marantz were maxed out. I searched Amazon to see what was available as a possible replacement that had a REMOTE. This Sony caught my eye. Relatively inexpensive, plenty of inputs, and specs I could trust, not a 3x4x5 box offering 220+220 watts of unlimited power! Ordered it and been using it for over a month now. Only 2 knobs, how good could that be? Well, it's remote let's me control everything without getting up. Plenty of output power, 100+100 watts of true RMS power. I didn't plan on using the Bluetooth but I tried it with the tablet, keeping the tablet by me, and it really impressed this old audiophile. I really don't have any negatives about it, even the fm sounds great. It was heavier than expected but not as much as that old Marantz. I even popped the cover. The build quality was what I consider good. I only wish I could find a service manual with the schematic for it.
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Reviewed in the United States on September 23, 2025
★★★★★ 5
Awesome lights
Color: 2Pcs 18W LED Flood Light
Very ruggedly built, good quality. Excellent price. Stainless steel hardware. Bright, clear light .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2026
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