





CTS Turbo C7 Audi A6/A7 3.0T and S6/S7 4.0T Heat Exchanger Upgrade
Keep your C7 Audi charge air cool with the CTS Turbo air-to-water heat exchanger, a must for any modified 3.0T A6/A7 or 4.0T V8 S6/S7. It replaces the small factory cooler to stop heat soak and hold power steady. Strongly recommended on stage 1 and higher tunes; intake air temps drop roughly 10F-12F.
What you get
- Efficient lightweight construction
- Triple-pass core — no additional coolant pump required
- Developed with the latest 3D scanning technology
- Complete replacement for the restrictive factory part
- Lowers intake air and coolant temperatures
- Holds power steady in extreme conditions
- Drain plug and bleed port so no air is trapped during a coolant fill
- Easy installation with a perfect fit
Kit includes
- Heat exchanger (24" x 17" x 2.5")
- Brackets and hardware
- Coolant hose
- Hose connectors
- Hose clamps
Fitment
- C7 Audi A6 3.0T
- C7 Audi A7 3.0T
- C7 Audi S6 4.0T
- C7 Audi S7 4.0T
Some cars are equipped with Audi Drive Select (ADS) and will require an additional oil cooler for ADS; the ADS cooler is visible through the front grille. Please confirm on your vehicle before ordering.
Ships from our Vancouver shop — KORE SPEED is proudly Canadian-owned, with no surprise cross-border duties for Canadian buyers. Questions on fitment? Email support@korespeed.com.
Pairs well with

CTS Turbo C7 Audi A6/A7 3.0T and S6/S7 4.0T Heat Exchanger Upgrade
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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