ZF8 Transmission Oil Cooler | BMW G8X M2/M3/M4 BMW-X4-M40i-2025

ZF8 Transmission Oil Cooler | BMW G8X M2/M3/M4 BMW-X4-M40i-2025Design, Development, and Testing While the OEM Transmission Cooler is adequate for the G8X in stock form, it starts to come up a bit short on modified tuned vehicles. Specifically ones that see heavy track competition use. Transmission oil temperatures have a major impact on the shifting performance of your automatic transmission. If the fluid passes optimal temperatures you will start to see some delays in shifting. Sluggish shifting can be quite

The cooling inlet/outlet connections use E36 OEM style slip on connections

This design offers a drastic improvement in heat dissipation and increases the fluid capacity of the coolers by ~94%

Add some Carbon to the rear of your BMW with exclusive CarBahn badging

Developed using Formula 1-derived technology

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leak-free fit

Heavy duty large pad upgrade thrust

Precision-molded from high-quality carbon fiber

6-liter stroker rotating assembly combined with forged CarBahn-CP pistons

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Why this Spoiler Stands Out

S65 Engine — Street Performance Stroker (4