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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20
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Description
Dinan High Performance Heat Exchanger - BMW/Toyota / A9X / G2X / G42 / 230i / M240i / 330i / M340i / 430i / M440i / Z4 and moreThe OE thermal management system for the B4x B58 G chassis BMW and Toyota GR Supra offers an improved formula from prior generations. With a setup where engine coolant is also re routed through the heat exchanger, the system effectively assists in overall engine cooling as well as charge cooling. However, like its predecessors, it has room for improvement as it can be overwhelmed when the system is taxed aggressively or as power levels are increased.
The OE thermal management system for the B4x/B58 G-chassis BMW and Toyota GR Supra offers an improved formula from prior generations. With a setup where engine coolant is also re-routed through the heat exchanger, the system effectively assists in overall engine cooling as well as charge cooling. However, like its predecessors, it has room for improvement as it can be overwhelmed when the system is taxed aggressively or as power levels are increased. Once overburdened, this results in the undesirable outcome of power being diminished. Avoidance of this unwelcome scenario can be attained though with a Dinan heat exchanger that improves the overall thermal management system so everything runs cooler and more efficiently while being budget friendly.
The Dinan B4x/B58 heat exchanger for the BMW G2x/G4x and Toyota A9x Supra assists in improving overall charge cooling using a more robust core (45mm thick Dinan core vs. 26.75mm thick OEM core) that wields 68% more heat transfer surface area for improved cooling capacity. The significant increase in core thickness and full-size end tanks contribute to the overall thermal mass (ability to absorb, store, and release heat) improvement beyond the OEM setup. With up to a nearly 12º reduction in charge air temps 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 8.7º C reduction in charge air temps with a maximum reduction of nearly 12º C over 30 successive WOT pulls
- General improvement to the efficiency of the thermal management system, inclusive of engine cooling
- 45mm thick Dinan core vs. 26.75mm thick stock cooler core
- 68% more cooling surface area and volume than stock
- Reduces the tendency to heat soak / go in to limp mode
- Durable bar and plate design that is less susceptible to damage from road debris
- Pressure tested, 100% TIG welded, Aluminum construction
- Direct fit replacement with no modifications required
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
4.3 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 3
not durable.
Size: Large, Color: 5 Pack
My dog devoured these in 60 seconds - completely shredded
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Reviewed in the United States on April 8, 2026
★★★★★ 5
No Mess, Lots of Fun!
Size: Large, Color: 5 Pack
My dog absolutely loves these toys! The squeakers and crinkle sounds keep him entertained for hours, and I appreciate that they have no stuffing—so no messy cleanup when he plays a little rough. The variety pack is great because it gives him different animals to choose from, and the toys are surprisingly durable even with lots of chewing.
They’re lightweight, easy for him to carry around, and perfect for playtime or keeping him busy when I’m working. Definitely a great value for the price, and I’ll be buying again when he wears them out. Highly recommend!
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Reviewed in the United States on August 21, 2025
★★★★★ 5
Great
Size: Large, Color: 5 Pack
These are big deal toys for our dogs. Use them when have to go out for a whole day. Have bought three sets over about two years. Takes them a several days to gut and get to the squeaker. They keep the skin around for months if we let them.
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Reviewed in the United States on March 10, 2026
★★★★★ 5
Dogs love them!
Size: Large, Color: 5 Pack
May dogs loved these. The squeaks last long enough but get lots of wear and tear. Worth money for the fun. My dog is 12 and still enjoys perfect size, weight, and flexibility.
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Reviewed in the United States on March 21, 2026
★★★★★ 5
GREAT Value even for a big boy.
Size: Large, Color: 5 Pack
My new 80lb husky/lab rescue LOVED his birthday present. They crinkle has he plays air-fetch w/himself! He does instantly puncture the squeekies at either end, but he's a large dog who chews. And these are SAFE for that. I figure 5 will last 2 months, but for the price? Who cares! He's worth it! Next time I'll go brighter colors because he tosses far &wide.
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Reviewed in the United States on April 22, 2026