

DO88
DO88
do88 Transmission Cooler, BMW G-Serie / Totyota GR Supra A90
Upgrade your car's performance with the do88 Performance Transmission Cooler!
Background
Specifically designed for BMW M340i/Z4 and Toyota GR Supra, our do88 Transmission Cooler ensures smooth and efficient gear changes. Although the latest Supra / M340i / Z4 lacks a manual gearbox, the fast ZF 8HP transmission combined with the B58 engine compensates for the driving experience. However, just like with all sports cars, heat is a challenge, especially in tuned cars that generate much more heat during demanding driving on the street, track, or drag strip.
Our Solution
The 2019+ BMW M340i/Z4 and GR Supra models already come with an original liquid-to-air transmission cooler. However, the heat generated by tuned cars can often exceed the capacity of the original cooler. With this in mind, our engineers designed a new core for the transmission cooler: the core volume was increased by 184% and the active cooling area by an impressive 176%, while maintaining an equivalent pressure drop. We upgraded the tubes to harmonic tubes which have internal channels, providing optimal cooling efficiency. Whether you spend a day on the track or enjoy inspiring street driving, the do88 Transmission Cooler helps keep temperatures in check.
Installation
Installation of the significantly larger do88 Performance Transmission Cooler is straightforward and requires no modifications (see installation instructions).
Key features
- Core volume increased by 184% and active cooling area by 176% compared to the original cooler (OE).
- Harmonic tubes ensure optimal oil flow and cooling efficiency.
- Compatible with do88 Front Intercooler (WC-400).
- OE-design quick connectors for inlet/outlet hoses.
- Drop-in fit, no modifications needed.
OE references: 32910-WAA02, ICM-430-G
- Part number
- OC-190