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 Aug 21 - Aug 26

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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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4.1 ★★★★★
Based on 7 reviews
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Verified Purchase
A. Baidas
New York, US
★★★★★ 5
Worth every penny
Great profuct. Exact fit. Comes with instructions. Took me about 6 minutes to take off the old ones and put the new ones in. Gave my 335i an aggressive look. Will definitely be buying more from this seller!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 11, 2019
N
Verified Purchase
Neil
Battle Creek, US
★★★★★ 5
Perfect Fit
Very easy to install and looks great, the prefect addition
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 6, 2021
H
Verified Purchase
Hugo Cardenas
Lexington, US
★★★★★ 5
Fits and looks good
Model: E46-4door, Size: Double Slats-Glossy Black
Fit great, looks good. Would recommend for e46
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026
P
Verified Purchase
Prince
Omaha, US
★★★★★ 5
Product as described!
Product as described. Nice snug fit for the 325ci!
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Reviewed in the United States on December 8, 2025
K
Verified Purchase
Kevin
Fort Morgan, US
★★★★★ 3
Doesn’t fit face lift sedan
Model: E46-4door, Size: Double Slats-Glossy Black
Did not fit 2004 330i sedan is a face lift looks nice
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026

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