Wagner Tuning Radiator Kit for BMW M340i 400001031
The Wagner Tuning Radiator Kit for BMW M340i 400001031 is a high-performance upgrade designed to significantly improve charge air cooling and engine efficiency. Engineered for demanding street and motorsport applications, this intercooler ensures lower intake temperatures, increased power potential, and enhanced reliability for turbocharged Audi engines. Developed with advanced flow optimization and precision manufacturing, the 400001031 intercooler provides maximum cooling surface area while maintaining excellent airflow characteristics.
Performance Benefits of Wagner Tuning Radiator Kit for BMW M340i 400001031
Improved Cooling Efficiency – Larger core volume and optimized fin design reduce intake air temperatures. Increased Power Potential – Lower temperatures allow for more aggressive tuning and improved combustion efficiency. Reduced Pressure Drop – Optimized internal flow channels ensure maximum airflow without restriction. Enhanced Engine Reliability – Stable intake temperatures protect against heat soak during spirited driving or track use. Motorsport-Proven Engineering – Designed for both high-performance street builds and track-driven vehicles.
Technical Information
- Brand: Wagner Tuning
- Product Name: Radiator Kit for BMW M340i
- Product Reference Code: 400001031
- Vehicle Make: BMW
- Vehicle Model: BMW 3er G20/G21/28
- Engine Compatibility: M340i
- Weight: 9.0
Why Choose Wagner Tuning?
Wagner Tuning is globally recognized for developing high-performance cooling solutions for turbocharged vehicles. Each intercooler is engineered using CFD flow simulations and high-quality materials to ensure superior thermal efficiency and durability. The Radiator Kit for BMW M340i is the perfect solution for enthusiasts looking to unlock the full potential of their platform while maintaining long-term reliability.
Wagner Tuning product information about Wagner Tuning Radiator Kit for BMW M340i 400001031
Wagner Tuning Competition Water Cooler Kit for BMW G20/G21/G28/G22/G23/G26 – 80% more volume & plug-and-play
Optimize the cooling performance of your BMW 3 Series or 4 Series! With our Wagner Tuning Competition Water Cooler Kit, you can improve your vehicle’s indirect intercooler circuit. This upgrade is the ideal solution for lowering the coolant temperature and taking performance to a new level. Prepare your BMW for maximum performance and experience the benefits of optimized cooling.
Why our water cooler is the best choice for your BMW:
Massive cooling performance: Our newly developed Competition racing core increases the cooler volume of the standard water cooler by an impressive 80%. Lowering the coolant temperature directly improves the cooling performance of the charge air.
Improved efficiency and durability: The water coolers are equipped with a heat-conducting anti-corrosion coating that ensures long-term and effective cooling.
Simple plug-and-play installation: The system can be installed using our detailed installation instructions and simple adjustments in a plug-and-play process.
Suitable for
BMW 3 Series (G20/G21/28): 320i*, 325i*, 330i (xDrive), 330e (xDrive), M340i (xDrive)
BMW 3 Series (G20/G21/28 LCI): 320i*, 320e, 330i (xDrive), 330e (xDrive), M340i (xDrive)
BMW 4 Series (G22/G23/26): 420i*, 425i*, 430i (xDrive), 430e (xDrive), M440i (xDrive)
BMW 4 Series (G22/G23/26 LCI): 420i*, 420e, 430i (xDrive), 430e (xDrive), M440i (xDrive)
*Note: Vehicles without an intake manifold with integrated intercooler and engine code B48C (e.g., 320i B48C, 320iX B48C, 325i B48C, 420i B48C, 420iX B48C, 425i B48C) are excluded.
Technical details & vehicle compatibility:
Wagner Tuning water cooler:
Net dimensions: 505 mm x 605 mm x 48 mm
Net volume: 14.67 liters (+80% vs. OEM 8.17 L)
Installation: 100% plug-and-play
Part number: 400001031








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