CSF 2-Row 42mm Aluminum Heat Exchanger – Toyota Supra A90 / BMW 1 Series, 2 Series, 3 Series, 4 Series (G-Chassis) / Z4 G29 (B58)

olve heat soak issues and unlock the full performance of your B58-powered vehicle.
Developed and track-tested over six months with top tuners and time attack teams, the CSF 2-Row 42mm Aluminum Heat Exchanger is the ultimate cooling upgrade for the Toyota Supra A90 and BMW G-Series with the B58 engine.

Why Upgrade?

From the factory, the liquid-cooled charge air system is a known weak point. On track or during spirited driving, intake air temperatures (IATs) spike quickly, triggering ECU power cuts or limp mode. The CSF Heat Exchanger addresses this by significantly improving cooling efficiency and preventing heat soak.

Track-Proven Performance

• Up to 40°F (22°C) lower IATs compared to OEM

• Maintains power longer on track without overheating

• Tested by top teams at events like Global Time Attack & Tianma Raceway

Key Features

• 2-row, 42mm ultra high-performance core with CSF’s exclusive B-Tube technology

• Direct drop-in fit – works with OEM charge-air system and transmission cooler

• Includes aluminum rock guard and OEM-style quick-connect fittings

• Designed to retain OEM ducting for maximum airflow

• Compatible with CSF Transmission Oil Cooler (#8183) and OEM setup

• Backed by a 2-year limited warranty