Wagner Tuning Competition Additional Water Cooler for Audi RS6/RS7 C7 (4.0 TFSI) – 102% more cooling volume Prepare your Audi RS6/RS7 C7 for maximum performance! With the Wagner Tuning Competition water cooler kit, you can optimize the cooling system of your 4.0L V8 biturbo (4.0 TFSI) engine. The impressive 102% increase in volume drastically reduces the coolant temperature and ensures maximum performance from your engine, ideal for tuning and sporty driving. Why this additional cooler is a must for your Audi RS6/RS7 C7: Massive volume expansion: The Competition racing mesh increases the cooler volume of the standard system by an astonishing +102%. Direct performance increase: By effectively lowering the coolant temperature in the indirect intercooler circuit, the cooling performance of the intercooler is immediately improved and power output is stabilized. Maximum heat transfer: The optimized ratio between internal and external cooling surface ensures maximum heat transfer and guarantees sufficient airflow for adjacent components. Long-term reliability: Equipped with a heat-conducting anti-corrosion coating that guarantees a lasting and stable cooling effect. Simple plug & play installation: The system is designed for easy installation as a plug & play solution. Technical detail: The 4.0 TFSI indirect cooling circuit The 4.0L V8 biturbo engine in the Audi RS6 and RS7 models (C7 series) uses an indirect intercooler circuit in which the charge air is cooled via a separate cooling water circuit. The standard cooling system quickly reaches its limits during sporty driving. The Wagner Tuning auxiliary water cooler kit solves this bottleneck: the 102% increase in volume massively reduces the temperature of the coolant in the circuit, which means that the charge air is cooled more efficiently and the engine can consistently deliver its full power. Technical details & vehicle compatibility (Audi RS6/RS7 C7) The Wagner Tuning Competition water cooler kit is plug-and-play compatible with the following high-performance models: Wagner Tuning auxiliary water cooler: Volume increase: +102% compared to the standard water cooler Core type: Competition racing core Installation: Plug & play Suitable for: Audi RS6 C7 (412 kW/560 hp) – 2013-2018 Audi RS6 C7 Performance (445 kW/605 hp) – 2015-2018 Audi RS7 C7 (412 kW/560 hp) – 2013-2017 Audi RS7 C7 Performance (445 kW/605 hp) – 2015-2017 Engine: 4.0L V8 biturbo (4.0 TFSI) Part number: 400001023 Order now and enjoy the ultimate driving experience!