SKU: 91081480729

DO88 S58 Transmission Cooler

Sale price$224.55 Regular price$249.50
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USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 24 - Jul 29

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Description

DO88 S58 Transmission CoolerImprove transmission durability and cooling on track and road with do88s upgraded transmission cooler designed to handle the extra heat generated by tuned G8X models without compromising shift speed or gearbox life. Overheating Risks in Tuned G8X Cars The ZF 8HP automatic transmission fitted to the G87 M2, G80 M3, and G82 M4 is impressively capable but like many OEM parts, its cooling system was not designed for extended track use or heavy tuning.

Improve transmission durability and cooling on track and road with do88’s upgraded transmission cooler – designed to handle the extra heat generated by tuned G8X models without compromising shift speed or gearbox life.

Overheating Risks in Tuned G8X Cars

The ZF 8HP automatic transmission fitted to the G87 M2, G80 M3, and G82 M4 is impressively capable – but like many OEM parts, its cooling system was not designed for extended track use or heavy tuning. With increased power and heat comes greater stress on the transmission cooler. Overheating can cause:

  • Slower, less consistent gear changes

  • Reduced transmission life

  • Limp mode or transmission fault warnings

Designed for Performance

  • +71% increased core volume vs. OEM

  • +50% increased cooling surface area

  • Dual-pass flow for longer fluid residence time

  • Upgraded harmonica-style tubes with internal channels for improved oil flow

  • Optimised design with no increase in oil pressure

  • 42% increase in oil volume (850ml vs 600ml OEM)

Motorsport-Ready Construction

  • Full aluminium construction for maximum strength and heat dissipation

  • TIG-welded end tanks for long-term reliability

  • OEM-style quick-connect fittings for hassle-free installation

  • Fits without any vehicle modifications

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: 91081480729

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4.6 ★★★★★
Based on 17 reviews
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PPeter
Lowell, US
★★★★★ 1
Too large. Correct size not depicted.
SIZE 10-14... Too large. Product details says "Regular" size. Returning.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
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Verified Purchase
Stacey Lovejoy
Port Orchard, US
★★★★★ 2
Too big
The one size fits all was too big for me.
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Reviewed in the United States on March 10, 2026
G
Verified Purchase
Glass
Whiting, US
★★★★★ 5
I stay on your foot they don’t slip in your shoe
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
This is the only socks I wear Under Armour because they stay in place I wear a size 8, but they’re more comfortable with a large instead of a medium, but I wear both because I have them already and you can pull them to stretch them out a little bit
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Reviewed in the United States on May 12, 2026
L
Verified Purchase
Lauren
Battle Creek, US
★★★★★ 5
Great fit, truly doesn’t slide off heel
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium, Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
I’ve scoured all the lands looking for a no-show sock that was 1) thin, 2) quality, soft, breathable material, 3) didn’t dig into my feet/heels, 4) doesn’t shrink, and most importantly 5) stays on the back of my heel without a bulky non-slip rubber piece and these check all the boxes! Perfect for low profile women’s work shoes like Keds, etc. Not low enough for most flats though. I wear a women’s size 9.
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Reviewed in the United States on April 19, 2025
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Verified Purchase
Elliz
Houston, US
★★★★★ 5
So good - I’m buying MORE.
Number of Items: 3, Color: White (3-pairs), Size: Medium
I’m gonna give you more detail than you need about why I’m buying these socks again. I’ve been the mom of girl athletes. I’ve been a model and a fashion director. I’ve worn every brand of shoe on the planet and never found a shoe that did NOT find a vulnerable spot on my foot to rub raw. Even my beloved white Jack Purcell sneakers. With that said - I don’t like socks. I’ve bought a TON of them in 35+ years.....all major brands. They shift. They lose their shape. They get holes in them and wear out too fast. Not these. I retired this year, and knowing I’d be in sneakers a lot, traveling, sightseeing ...... I bought these 6 months ago and have worn them constantly. I’ve traveled with them. I’ve washed them in hot water and bleach. The socks are like brand new. They are exactly the right cut so as not to be seen in a basic sneaker. The little silicone patch on the heel stays put. Not once have I had to dig down into my shoe and pull the sock back up. The socks have stayed soft and EXACTLY the same as the day they were new. Like I said - I am back to buy them again. Great quality!
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Reviewed in the United States on January 20, 2021

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