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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16
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Description
Fits 2016-2021 Bmw 230I/M240I High Performance Heat Exchanger-D780-0002The factory B4x B58 heat exchanger is not built to cater to the rigorous demands often associated with a modified build. The thin core is easily overwhelmed with IAT's rising dramatically once pushed beyond a few successive WOT pulls or even a few minutes at the track. This elevation in temperature gives way to the factory ECU fail safes pulling timing and reducing overall power in order to keep the system from overheating to the point of permanent
The factory B4x/B58 heat exchanger is not built to cater to the rigorous demands often associated with a modified build. The thin core is easily overwhelmed with IAT's rising dramatically once pushed beyond a few successive WOT pulls or even a few minutes at the track. This elevation in temperature gives way to the factory ECU fail safes pulling timing and reducing overall power in order to keep the system from overheating to the point of permanent damage. On an application where enjoyment is directly attributed to pushing the platform to its limits this constraint to cooling presents a challenge for the automotive enthusiast. The Dinan B4x/B58 heat exchanger for the F2x/F3x chassis assists in mitigating these issues with a more robust core (48mm thick Dinan core vs. 27mm thick OEM core) that wields 78% more heat transfer surface area for improved cooling capacity. The significant increase in core thickness requires unique "L" shaped end tanks to be incorporated as well, which also contributes to the overall thermal mass (ability to absorb, store, and release heat) improvement beyond the OEM setup. With up to a 15° IAT delta recorded over stock the Dinan heat exchanger is ready, and able, to assist in extending your vehicles ability to deliver maximum performance time and time again for your driving enjoyment!
Features:
- Average of 8° reduction in IAT's with a maximum reduction of 15° over 15 successive WOT pulls
- Reduces the tendency to heat soak / go in to limp mode
- 48mm thick Dinan cooler vs. 27mm thick stock cooler
- 78% more cooling surface area and volume than stock
- 100% TIG welded and pressure tested
- Installation hardware included (inclusive of xDrive specific transmission oil cooler brackets)
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
4.9 ★★★★★
Based on 360 reviews
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Product Reviews
★★★★★ 5
Easy to Hang
Color: Black, Size: 3 Pack
This shelf is easy to hang, comes with great anchors and looks perfect. The quality looks nice and is was an easy hanging process compared to other shelves. Worth it for the price.
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Reviewed in the United States on May 18, 2026
★★★★★ 5
One of the best deals available!
Color: White, Size: 2 Pack
Extremely sturdy, good looking and easy to install. I have a couple of dozen feet of assorted lengths in the kitchen, bedroom, living room and foyer. Holding all sorts of antique clocks, audio equipment and cooking stuff from my flours and assorted cornmeals to cases of powdered “lemonade”.
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Reviewed in the United States on April 18, 2026
★★★★★ 3
Mounting system doesn’t align on one of three shelves.
Color: Walnut, Size: 3 Pack
Nice shelves. Install was super easy except on one of the three shelves. The main mounting shelf holes were off so the shelf will not slip onto horizontal mounting poles unless I modify the shelf. So a 20 minute job becomes a two hour job.
The mounting system does appear very sturdy just not aligned.
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Reviewed in the United States on January 4, 2026
★★★★★ 5
Great center piece for my gaming room
Size: 7.9"D x 39.4"W x 34.3"H, Color: White, Size: 7.9"D x 39.4"W x 34.3"H, Color: White
It’s quite large, but you can display a lot of your cool collectibles on it. It arrives in a nicely packaged box with instructions, although I found the instructions to be quite basic. Most people should be able to figure it out.
Instead of following the instructions, I recommend forming the honeycomb structure on one side and then attaching it to your wall. Drill holes through the holes in the honeycomb, ensuring everything is level. Once the entire unit is assembled, one person can hang it on the wall. However, I suggest having a building partner. I attempted it alone and was straining my core while reaching on a ladder, which was probably not the wisest idea. The build quality appears to be very good, and I believe it will last for many years. The LED light colors are nice, though not as good as those on a razor, but they’re not bad for a third-party product. There are plenty of screws to install, with a couple of extra.
Just for reference my computer screen in the g9 57 inch that’s how big this shelf unit is. Holds up to 120 lbs
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Reviewed in the United States on February 8, 2026
★★★★★ 5
So many uses for this shelves
Easy to assemble and true to size i use mine as an mini Rc crawler display. Very sturdy and cleans well.
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Reviewed in the United States on February 14, 2026