SKU: 52905245892

do88 Auxiliary Radiator - BMW G-Series / Toyota GR Supra A90

$283.50 $315.00
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Ships within 48 hours · Estimated delivery Jul 25 - Jul 30

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Description

do88 Auxiliary Radiator - BMW G-Series / Toyota GR Supra A90Upgrade the performance of your B58 Gen 2 engine with the do88 Performance Auxiliary radiators! The B58 Engine Cooling SystemThe B58 engine features a cooling system with three frontal radiators, one large central radiator and two smaller auxiliary radiators located in front of each wheel. Tuned engines produce significantly more heat, making it challenging to maintain optimal engine temperatures during intense street, track, or drag strip driving.

Upgrade the performance of your B58 Gen 2 engine with the do88 Performance Auxiliary radiators!

The B58 Engine Cooling System
The B58 engine features a cooling system with three frontal radiators, one large central radiator and two smaller auxiliary radiators located in front of each wheel. Tuned engines produce significantly more heat, making it challenging to maintain optimal engine temperatures during intense street, track, or drag strip driving. The OE auxiliary radiators have slim cores and plastic tanks, which are not ideal for tuned cars. Upgrading these auxiliary radiators is will help to ensure proper engine temperature.

Our Solution
Fortunately, the design space available for the auxiliary radiators allows for both increased frontal surface area and core thickness on both sides of the car. The OE radiator is identical for both sides, and our do88 Performance Radiators are designed to be drop-in replacements for both left and right sides. We offer them as a pair because upgrading just one radiator isn't as effective as upgrading both simultaneously. Our Performance Auxiliary Radiators provide enhanced cooling capacity to prevent heat soaking. Key features include:

  • Larger core volume than the original equipment (OE).
  • Dual-row core with a thickness of 40mm.
  • Full aluminum construction, complete with durable TIG-welded end tanks.
  • Increased fluid capacity for optimal heat dissipation.

Installation
The installation is simple, as our radiators come with CNC-machined mounting brackets and OE-style Quick Connect inlet/outlet connections. The OE rock guard can be easily attached to our radiators for protection against small rocks and road debris.

Download Installation Guide 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 52905245892

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4.5 ★★★★★
Based on 16 reviews
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Verified Purchase
Bamagreek
Belleville, US
★★★★★ 5
Great Protection
Color: Orange, Size: 13-inch for New MacBook Air & Pro
This is a very nice, protective case. The material is thick and cushions the laptop great! Computer fits nice and cozy; great fit. I love the bright orange! I highly recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
G
Verified Purchase
GloveMan
Charlottesville, US
★★★★★ 5
A sold, attractive, case.
Color: Navy Blue, Size: 13-inch for New MacBook Air & Pro
This case looks great, has a nice, lively color scheme, and seems to be reasonably protective and sturdy. I wouldn’t toss a laptop around with only this as protection, but I feel fairly confident in it for small drops. The fabric is easy to clean and has held up well. You can charge without taking it out of the case thanks to a zipper, and it doesn’t add much bulk, making it quite portable. All in all a good balance of protection, cost, and style.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
J
Verified Purchase
John G
Carnegie, US
★★★★★ 5
I would rescue it from a fire even if it were empty. I'm kidding but I do like this sleeve a lot.
Color: Orange, Size: 13-inch for New MacBook Air & Pro
Fits perfectly. Superb padding. The corner padding inspires confidence-not that I want to test it! The orange color is-chef's kiss-beautiful. A perfect contrast to the midnight color of my MacBook. I could gush about that stuff all day. But you all want to know about the other stuff. Zippers: Two YKK no snag bi-directional closers for the main opening and a solo no snag YKK for the side pocket. Outside: Feels like tactical nylon type fabric. I haven't and won't intentionally test its stain resistance. But I suspect it would clean up just fine. Interior: A very soft microfiber like interior covering an odor free padding that is firm yet forgiving. There is a recess you push your laptop into making for a snug fit that, like I wrote earlier, inspires confidence. This sleeve is larger than some competing brands but seeing the recess in person explains why. Having touched on the size of this sleeve, it maintains the svelteness of my MacBook Air. Yes, it is thicker than some other sleeves, by a smidge. However the additional protection suggested but that smidge, that minute extra ish is worth it to me. The sleeve fits in my travel backpack, so that's all good. Lastly, I would consider putting a tablet or phone in the sidepocket but not anything that would concentrate the any energy that dissipates during a fall. Had I designed this product I wouldn't have included the side pocket. It's great for documents and thin things but the sell page suggests chargers. That seems like inviting risk. You do you.
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Reviewed in the United States on January 22, 2026
N
Verified Purchase
Nosferatu
Phoenix, US
★★★★★ 4
Better Lips, Better Fit, Less Nonsense
Color: Black, Size: 13-inch for New MacBook Air & Pro
I tested this sleeve with a 13.6” MacBook Air (M4), and the difference is immediately noticeable. First thing: fit. This one actually holds the laptop in place. The padded “lips” in the corners create just enough resistance that you have to guide the MacBook in and out. It’s not a loose drop-in like other cases — it feels controlled. If I shake it, there’s barely any movement, which is exactly what I was looking for. Second: build quality. The stitching is clean and consistent — almost surgical compared to the wrinkled mess I saw on another model. The outer fabric stays flat, no weird waves or cheap-looking folds. The interior lining is softer and thicker too, so it feels more protective without being bulky. Third: structure. I even did a quick “real-world” test — stood it vertically on a mattress, zipper open, applied pressure from the top — and it held its shape. The other case I tried would have collapsed immediately. This one actually feels like it can handle normal use without transferring pressure straight into the laptop. The external pocket is simple but practical. It fits the charger brick and cable without interfering with the main compartment, which keeps the laptop fit intact. Only downside: I could do without the orange accents. A full black version would be perfect. But honestly, that’s cosmetic — functionally, this one does what it’s supposed to do. At around this price point, this feels fair. Not luxury, not overhyped — just a well-executed, practical sleeve that gets the fundamentals right. Bottom line: not perfect, but finally something that feels properly made and actually holds the laptop instead of just surrounding it.
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Reviewed in the United States on March 29, 2026
A
Verified Purchase
AmazonUser
Phoenix, US
★★★★★ 5
Great Laptop Case !
Color: Black, Size: 13-inch for New MacBook Air & Pro
This case is reallllly nice and durable, the cushioned corners is what really makes this case special imo. The outer layer is a nice durable think fabric. It fits perfectly. The only downside is the zipper traction is not as smooth as I would like ,,, but I guess I can fix that with some oil/wd40. I would recommend this laptop case ! 👌🏽👌🏽👌🏽
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 24, 2026

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