do88 Transmission Cooler - BMW S58 (G80/G82/G87) 2020-2026

The ZF 8HP behind the S58 is strong, but added power and track use push the factory transmission cooling past its limit, which shows up as slower shifts and risks damaging the gearbox. do88's replacement raises core volume by 71% and cooling surface area by 50% while holding similar oil pressures, and lifts the oil volume in the cooler from 0.6 to 0.85 litres, a 42% increase. Harmonica tubes with internal channels carry the flow and a dual pass layout keeps the fluid in the core longer so more heat is shed. OEM style quick connect fittings make it a drop-in change.

Specifications

Documents: Installation Instructions (PDF)

This part fits:

Shipping

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Returns

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Full details: Shipping Policy · Refund Policy