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MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
05-03-2026
This product was last offered at the strikethrough price on
05-03-2026
BMW’s turbocharged B48 and B58 engines use a water-to-air charge air cooling system, with a front-mounted heat exchanger responsible for heat dissipation. Unfortunately, the factory single-row, 25mm core design is quick to heat soak under high load, leading to excessive intake air temperatures and potential limp mode conditions—especially on modified or track-driven cars.
ECS Tuning’s High Performance Aluminum Heat Exchanger was developed in-house as a direct replacement and upgrade over the factory unit. Designed for durability and maximum cooling efficiency, this heat exchanger is a must-have for high-horsepower street builds, spirited canyon driving, and extended track sessions. Built from TIG-welded 6061-T6 aluminum, the ECS unit eliminates the factory plastic end tanks—one of the system’s most common failure points. Each heat exchanger features CNC-machined billet aluminum hose connections, mounting flanges, and brackets for perfect OE fitment and trouble-free installation.
To drastically improve thermal efficiency, the factory 25mm single-row core has been replaced with a dual-row, 42mm performance core, offering a 72% increase in thickness. This expanded design nearly doubles coolant volume, allowing for greater heat dissipation, reduced intake air temperatures, and more consistent power delivery.
Replaces OEM Part Numbers: 17118666811, 17115A54040
Features:
6061 aluminum construction eliminates plastic end tank failure Dual-row, 42mm performance core provides 72% greater core thickness for improved cooling efficiency OE core: single-row, 25mm | ECS core: dual-row, 42mm TIG-welded 6061-T6 aluminum end tanks for exceptional strength Polished end tanks deliver a clean, high-quality finish CNC-machined billet connectors and brackets ensure seamless OE-style fitment Direct bolt-on upgrade – no modifications required
Optimize your intake air temperatures with the Mishimoto Performance Heat Exchanger, specifically designed for BMW G20, G29, and A90 Supra models. Embracing the air-to-water intercooler technology that BMW has adopted for its B58 engines, our heat exchanger addresses the inherent limitations and elevates cooling performance.
Starting with a complete redesign, we've eliminated all plastic components, opting instead for robust aluminum construction. The end tanks, core, and inlet/outlet ports are TIG-welded for enhanced durability. Our innovative use of strutted tubes within the core adds exceptional strength, preventing bowing and flexing during aggressive driving.
Beyond durability, our heat exchanger features a significant size increase, with a 31% boost in core volume and a 48% expansion in external fin surface area. The dual-pass flow configuration and louvered fin design contribute to a notable 5-7°F reduction in intake air temperatures and more stable overall intercooler coolant temperatures.
Key Features:
Perfect fit for BMW G20 M340i, G29 M40i, and A90 Supra. Enhanced core volume by 31%. Increased external fin surface area by 48%. Fully aluminum, TIG-welded construction for ultimate durability. Achieves a 5-7°F reduction in intake air temperatures compared to stock. Comes with a galvanized steel stone guard. Incorporates strutted tubes in the core for added strength. Dual-pass design maximizes cooling efficiency.
