Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 8 - Jul 13
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Description
Dinan G2x M340i/M440i Foundation Package (F) G2X-M340IM440I-F-BDinan G2x M340i M440i Foundation Package (F) Foundation packages represent the most direct path to increased power while retaining drivability and safety. The combination of Dinan modifications work harmoniously with one another and offer a balanced blend of enhanced engine efficiency, improved acceleration and increased power to go along with a tasteful high performance look and unmistakable Dinan sound. Whether you start with the base Foundation
Dinan G2x M340i/M440i Foundation Package (F)
Foundation packages represent the most direct path to increased power while retaining drivability and safety. The combination of Dinan modifications work harmoniously with one another and offer a balanced blend of enhanced engine efficiency, improved acceleration and increased power to go along with a tasteful high performance look and unmistakable Dinan sound. Whether you start with the base Foundation package that includes the core hardware building blocks (intake and exhaust), or opt for packages that further enhance your vehicles power output and abilities you will be well on your way to an elevated experience.
Features:
- Maximum gains of +9 HP and +8 lb-ft of torque (Exhaust + Intake)
- Smoother, louder and sportier sound (Exhaust + Intake + Turbo Inlet)
- Computer controlled exhaust valves are retained and limit noise during low-speed driving and open fully during high-load conditions (Exhaust)
- 4-pounds lighter than the stock for an improved power- to-weight ratio (Exhaust)
- Reduced intake restriction for greater flow that allows increased turbo efficiency and greater power potential on modified builds (Intake + Turbo Inlet)
- Improved throttle response (Intake + Turbo Inlet)
- 7 points towards the illustrious Dinan deck lid badge
Specs:
| Brand | Dinan |
|---|---|
| Emission Code | 7 |
| Labor Time (Hours) | 4.5 |
| Product Type | Foundation Package |
| Tip Finish | Black Ceramic Coated |
| Warning | California Proposition 65 |
| Warranty | Dinan Factory Matching (4yr/50k) Warranty |
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
4.7 ★★★★★
Based on 487 reviews
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Product Reviews
★★★★★ 5
Good quality
These fit so well material is very tick nice for winter they have all different colors and it’s so comfy it’s really good value for your money for that level of thickness
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Reviewed in the United States on September 30, 2025
★★★★★ 5
Buy it
If you're looking for a comfortable thick and nice turtle neck this is the one. It's nice and form fitting nice weight to it to keep you warm. But not to thick that you cant just wear it on a regular sunny day if you wanted. The design pattern Is also very nice. Can dress it up or down. I bought the black and then immediately bought the rust orange color for my friend once he tried on mine he wanted one immediately so I gifted him one. He loves it. Definitely worth the buy. Excellent quality. I bought a Large 5"11 165lbs
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Reviewed in the United States on December 21, 2024
★★★★★ 5
What you see is what you get!
Color: 01-black, Size: Large
Fits great, fabric is amazing, turtle neck fits tight, and the quality is amazing!
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Reviewed in the United States on February 11, 2026
★★★★★ 4
A true turtleneck that retains a snug high neck.
Color: White, Size: X-Large
I've found this brand to have gotten better over the years as far as offering the American market what it needs in terms of realistic sizing. I only wish they'd realize that there are a lot of us who are long in the back and arms where my only choice is to go a size up and sacrifice a slim fit for sleeves that are long enough plus a back that doesn't go up past my waist just because I reach up for something, that and I like to be warm. So these are such nice quality turtlenecks that it's hard to complain about but maybe the company will read this. The snug neck stays up is plus number one since that's why I'm buying a full neck. They come with very nice weaves in the fabric, good enough for casual or formal wear. Finally the warmth you seek is there but I've worn them in what most would think isn't the right temp for a turtleneck. Also they have them in white! Yes, a lot of others just don't for reasons I can't fathom, and the pic you're seeing is accurate, these will form to your shape without being ridiculously thin material. Several washes later and they are as fine a garment as when I first wore them. I've only found one other brand that compares to these but it's much more expensive, COOFANDY is affordable in these times of expensive everything. Warm but also a lightweight shirt, I've gotten them really dirty with actual dirt and it washes out so well you'd never know it. Don't let my taking off one star stop you, try one yourself and you'll be coming back for more.
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Reviewed in the United States on July 30, 2025
★★★★★ 5
Quality,warmth and fit
Color: Royal Blue, Size: Small
Really top quality. This is my 4th purchase of these Really great sweaters.
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Reviewed in the United States on February 12, 2026
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