C7 Audi A6/A7 3.0T S6/S7 4.0T Heat Exchanger

The CTS Turbo C7 Audi A6/A7 3.0T and S6/S7 4.0T Heat Exchanger Upgrade is a premium solution for V8 4.0T C7 Audi S6/S7 models seeking to avoid heat soak. This upgrade kit is essential for any modified vehicle, especially those with Stage 1 tuning or higher, as it significantly reduces intake air temperatures by 10-12°F. The unit is designed using the latest 3D scanning technology for a perfect fit, replacing the restrictive factory component. Constructed from an efficient and lightweight triple-pass core, this heat exchanger does not require an additional coolant pump. It effectively reduces both intake air and coolant temperatures, helping to maintain consistent power output even under extreme conditions. The design includes a drain plug and bleed port to ensure no air is trapped during coolant refills, facilitating an easy installation. This kit includes the heat exchanger itself (measuring 24" x 17" x 2.5"), along with all necessary brackets, hardware, coolant hose, hose connectors, and hose clamps for a complete replacement of the restrictive factory part. The upgrade is specifically designed for the C7 Audi A6 3.0T, C7 Audi A7 3.0T, C7 Audi S6 4.0T, and C7 Audi S7 4.0T. Note that some vehicles equipped with Audi Drive Select (ADS) may require an additional oil cooler for ADS functionality. Owners should verify if their vehicle has this feature, which is typically found on earlier models (2010-2012 B8 S4) equipped with Dynamic Steering and Dynamic Suspension, before placing their order.