CSF 2020+ Toyota A90/A91 Heat Exchanger

CSF High-Performance Heat Exchanger for B58 BMW & Toyota Supra

Keep intake-air temperatures under control with the CSF B58 High-Performance Heat Exchanger. Designed for compatible BMW B58 models and the Toyota GR Supra, this upgraded heat exchanger provides substantially more cooling capacity than the factory unit—helping reduce heat soak, maintain consistent power, and minimize the risk of temperature-related limp mode.

This upgrade is especially valuable for vehicles running ECU tuning, increased boost, upgraded turbochargers, or frequent track use. CSF combines its exclusive B-Tube technology with a high-efficiency, dual-row aluminum core to improve heat transfer and accelerate recovery between hard pulls.

Despite its increased cooling capacity, the CSF heat exchanger fits within the factory cooling-system housing. CNC-machined brackets, OEM-style quick-connect fittings, integrated transmission-cooler mounting points, and the included metal rock guard provide a true drop-in installation with factory-style fitment.

Unlike many aftermarket alternatives, CSF includes the necessary transmission oil cooler mounting hardware and a protective rock guard engineered to promote airflow. Its durable, all-aluminum TIG-welded construction makes it an ideal cooling upgrade for both high-performance street builds and dedicated track cars.

Features and Benefits

• Helps significantly reduce intake-air temperatures
• Faster recovery from heat soak between pulls
• Supports more consistent performance under demanding conditions
• Improves airflow through the surrounding cooling system
• May help reduce engine-coolant and engine-oil temperatures
• Dual-row, ultra-high-performance core
• CSF-exclusive B-Tube technology
• Updated 2026 Track-Spec 5mm multi-louvered cooling fins
• Increased surface-area contact for improved heat dissipation
• CNC-machined mounting brackets
• OEM-style quick-connect inlet and outlet fittings
• Integrated OEM transmission-cooler mounting points
• Protective metal rock guard included
• 100% aluminum TIG-welded construction
• Smooth satin finish
• Direct drop-in fitment
• Backed by a two-year limited warranty
• Tested with CSF’s network of tuners, motorsport teams, and turbo manufacturers

Recommended For

• Tuned BMW B58 and Toyota GR Supra applications
• Upgraded or hybrid turbo setups
• High-boost street builds
• Drag racing, roll racing, and track use
• Vehicles experiencing elevated intake-air temperatures
• Drivers looking for improved cooling consistency

Important Fitment Information

Please verify your vehicle’s year, model, engine, and transmission configuration before ordering. Professional installation is recommended.

The items installed or applied to vehicles are intended strictly for off-road use only and track vehicles. These modifications may not comply with emissions, safety, or environmental regulations required for public road use under Environmental Regulatory Agency (ERA) laws. It is the sole responsibility of the vehicle owner or operator to ensure adherence to all applicable local, state, and federal regulations. Use on public roads may result in legal penalties or vehicle impoundment. Always verify compliance with local authorities before installation.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

If you're unsure whether a part will fit your vehicle, feel free to contact us here with your inquiry. Our helpful sales team will reach out to confirm if it's the right match for you.

We offer a flat-rate shipping fee across the continental United States. This excludes Alaska, Hawaii, and U.S. territories. For international orders, additional shipping costs will apply. Please contact us for a quote if you are outside the continental U.S.

Also, feel free to also contact us at ColoradoN5X@Gmail.Com for any other questions.

Not all items are covered by warranty. Items including warranty, will clearly state that there is warranty within the product description. Most of these items will be a standard 1-year warranty against manufacture defects. You, the customer, will be responsible for shipping and handling. We will fix/replace that item with a product that is in working condition if you meet the warranty criteria. Please note that you will be allowed ONLY 1 claim within the year for that product. ColoradoN5X is not responsible for any damage caused during the installation of our products.