The ZF 8-speed in the G8X M2, M3, and M4 handles serious S58 power well — but once you push past stock with tuning, bolt-ons, and track days, the factory transmission cooler becomes a weak point. Elevated trans temps mean sluggish shifts, reduced performance, and long-term wear. The RVNG Performance Transmission Cooler fixes that.

Engineered for efficiency, it delivers a 41% increase in core volume and a 17% increase in fluid capacity over stock, with internal cooling fins that maximize surface area for better heat dissipation. A dual-pass design keeps fluid circulating longer for improved cooling without choking airflow to surrounding components — so your ZF 8HP stays cool, responsive, and protected on canyon runs or lap times.

Highlights

• 41% increase in core volume over stock
• 17% increase in fluid capacity
• Internal cooling fins for greater surface area
• Dual-pass design for longer fluid circulation
• Built-in rock guard to protect the core

Fitment

2021+ BMW G80 M3, G82 / G83 M4, and G87 M2 (S58).

Ships from our Vancouver shop — KORE SPEED is proudly Canadian-owned, with no surprise cross-border duties for Canadian buyers. Questions on fitment? Email support@korespeed.com.