Overview
CTS B8/B8.5 Audi S4/S5 Air-to-Water Heat Exchanger (Intercooler) Upgrade for your supercharged 3.0T engine!
Avoid heatsoak by replacing the small factory cooler; this is a must for any modified V6 supercharged S4/S5/Q5/SQ5 3.0TFSI. Keep your air temperature low with our premium AWIC upgrade kit.
Strongly recommended to be used on stage 2 and up tuned vehicles. Air intake temps are reduced by 10F-12F.
Details
- Efficient lightweight construction
- Triple-pass core. No additional coolant pump required
- Designed using the latest 3D scanning technology
- Complete replacement for restrictive factory part
- Reduces intake air temperature
- Reduces coolant temperatures
- Helps Maintains consistent power in extreme conditions
- Drain plug and bleed port to ensure no air is trapped while adding coolant
- Easy installation, perfect fit
Kit Includes:
- Heat Exchanger (24" x 17" x 2.5")
- Brackets & Hardware
- Coolant Hose
- Hose Connectors
- Hose Clamps
Some 2010-2012 B8 S4 vehicles equipped with Audi Drive Select (ADS); you will have to order an Additional oil cooler for ADS.
ADS cooler is visible through the front grille, see photos below. Usually comes on early 2010-2012 B8 S4 vehicles equipped with Dynamic Steering and Dynamic Suspension.

B8.5 Audi S4 installation by Boost Dynamic Tuning:
Fitment
This part is compatible with the following vehicles
| Years | Make | Model | Engine | Trim |
|---|---|---|---|---|
| 2009-2012 | Audi | Q5 | 2.0T | All |
| 2009-2012 | Audi | Q5 | 2.0T | All |
| 2010-2012 | Audi | S4 | 3.0T (supercharged) | All |
| 2010-2012 | Audi | S5 | 3.0T (supercharged) | All |
| 2013-2015 | Audi | SQ5 | 3.0T (supercharged) | All |
| 2013-2015 | Audi | SQ5 | 3.0T (supercharged) | All |
| 2013-2016 | Audi | S4 | 3.0T (supercharged) | All |
| 2013-2017 | Audi | Q5 | 2.0T | All |
| 2013-2017 | Audi | Q5 | 2.0T | All |
| 2013-2017 | Audi | S5 | 3.0T (supercharged) | All |
| 2016-2017 | Audi | SQ5 | 3.0T (supercharged) | All |
| 2016-2017 | Audi | SQ5 | 3.0T (supercharged) | All |
