AMS Performance Heat Exchanger
Not sure which option fits your application? Contact Us — we're happy to help.
The AMS Performance B58 Heat Exchanger for the 2019+ BMW M340i is a drop-in upgrade that slashes intake temps and banishes heat soak under all conditions. Its motorsport-grade, dual-pass core and billet-aluminium end tanks deliver unrivalled cooling capacity—no cutting, drilling or special tools required.
Key Features:
• CNC-machined 6061-T6 billet-aluminium end tanks for OEM-style fitment
• Motorsport-grade dual-pass core with 54% larger volume than stock
• 122% more coolant capacity for superior thermal stability
• 5 mm louvered fins optimise heat transfer and minimise pressure drop
• Plug-and-play installation using factory mounts and hoses
• CAD-designed and CFD-refined for perfect fit and maximum efficiency
Engineering Highlights:
Developed in Solidworks® with rigorous CFD analysis, this heat exchanger uses upgraded coolant ports and brackets to ensure flawless, OEM-quality integration. The precision-machined end tanks lock into factory mounting points for a secure, vibration-free fit.
Benefits:
• Dramatically lower intake-air and coolant temperatures
• Consistent power delivery during track sessions, roll-racing pulls or hot-weather drives
• Eliminates heat soak for sharper throttle response and sustained performance
Contents
• AMS Performance B58 Heat Exchanger
• Upgraded coolant lines, couplers and bleeder port
• Mounting hardware and instructions
No instructions available for this product.
Need Help Finding the Right Part?
We’ll Track It Down for You
We know how frustrating it can be searching for the right part. If it’s not listed on our site, that doesn’t mean we can’t source it.
Fill out the quick form below and our team will track it down for you.