CSF High-Performance Heat Exchanger - Toyota GR Supra (A90) / BMW B58 330i, 430i, M340i, M440i, Z4 (2019-2026)

CSF High-Performance front mount heat exchanger for the 2020+ Toyota GR Supra (A90) and its BMW B58 siblings including the 330i, 430i, M240i, M340i, M440i and Z4. It is critical for keeping charge air cool and out of limp mode, especially with upgraded turbos or performance tuning. The OEM B58 heat exchanger is a 1-row 25mm unit; CSF replaces it with its industry-exclusive 2-row 68mm B-Tube core, using a unique tank design so the larger core still fits the OEM housing. It includes billet transmission cooler mounts and a metal rock guard, and CSF is the only company to incorporate OEM transmission cooler mounting points for a true plug-and-play drop-in fit. Construction is 100% all-aluminum TIG-welded with CNC-machined brackets and OEM-style quick-connect fittings.

Specifications

This part fits:

Shipping

• In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Backordered items ship as soon as stock lands — contact us for lead times.
• International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

• 30-day returns on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
• Installed or used parts can’t be returned — confirm fitment before you install.
• Special orders and custom items are final sale.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy