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USA
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- USA
- CAN
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
4.2 ★★★★★
Based on 2488 reviews
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Product Reviews
★★★★★ 4
Not invincible but good value
Color: 5pack, Size: Large
Great value for the money. We have 3 dogs and they are pretty strong chewers. They lasted a few months but ultimately succumbed to their inevitable doom. They arrived well packaged and with no unusual odors.
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Reviewed in the United States on April 28, 2026
★★★★★ 5
One of the best indestructible dog toys we've bought
Color: 5pack, Size: Large
So we adopted a pup in December and she tears up everything! I mean, Everything! My CPAP, garden hoses, trucks seat belt and backup camera wiring. Every single dog toy with stuffing, dismantle them in minutes. So many dog toys say they are are tear proof. nope! We have tons of stuffing all over our 5 acres. Hen m wife bought these. Beside the bones she bought, these are the only things she can't seem to destroy and she loves them!!!!
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Reviewed in the United States on June 3, 2026
★★★★★ 5
BEST Dog Toys EVER! JRT approved
Color: 5pack, Size: Large
🌟 🌟 🌟 🌟 🌟 for these toys! We have terriers who have NEVER met a toy they couldn't destroy... until now. We've had them over a week an all 5 are still intact, crinkly, and squeakers squeaking - and they're played with constantly! When I tell you I've never, in all my years of JRT ownership and rescue, had a toy last 24 hours, much less a WEEK? Well, lots of you will know how astonishing that is! We've currently got 5 dogs (2 fosters, anyone looking for a project?) so the package size is perfect. Get 'em.
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Reviewed in the United States on May 11, 2026
★★★★★ 5
Great toy, they go the distance!
Color: 5pack, Size: Large, Color: 5pack, Size: Large
Best typy of toys for my pups. Love them. They last!! Chewing tug games. Love them. The squeakiest don’t come out ! Big plus’s. and don’t last long with my dogs, which for me is a big plus’s. Those squeakier drive me crazy!!
If they get too yucky, toss them in the washer/dryer! Good to go again.
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Reviewed in the United States on March 29, 2026
★★★★★ 4
String but not indestructible.
Color: 5pack, Size: Large
They’re cute and strong for a dog that likes to bite into toys. Not indestructible.
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Reviewed in the United States on February 13, 2026