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CTS B8/B8.5 Audi S4/S5/Q5/SQ5 3.0T Supercharged Heat Exchanger Upgrade
CTS B8/B8.5 Audi S4/S5/Q5/SQ5 3.0T Supercharged Heat Exchanger Upgrade
CTS B8/B8.5 Audi S4/S5/Q5/SQ5 3.0T Supercharged Heat Exchanger Upgrade
CTS B8/B8.5 Audi S4/S5/Q5/SQ5 3.0T Supercharged Heat Exchanger Upgrade
CTS B8/B8.5 Audi S4/S5/Q5/SQ5 3.0T Supercharged Heat Exchanger Upgrade
CTS B8/B8.5 Audi S4/S5/Q5/SQ5 3.0T Supercharged Heat Exchanger Upgrade
CTS B8/B8.5 Audi S4/S5/Q5/SQ5 3.0T Supercharged Heat Exchanger Upgrade
CTS B8/B8.5 Audi S4/S5/Q5/SQ5 3.0T Supercharged Heat Exchanger Upgrade
CTS B8/B8.5 Audi S4/S5/Q5/SQ5 3.0T Supercharged Heat Exchanger Upgrade
CTS B8/B8.5 Audi S4/S5/Q5/SQ5 3.0T Supercharged Heat Exchanger Upgrade
CTS B8/B8.5 Audi S4/S5/Q5/SQ5 3.0T Supercharged Heat Exchanger Upgrade
CTS B8/B8.5 Audi S4/S5/Q5/SQ5 3.0T Supercharged Heat Exchanger Upgrade
CTS B8/B8.5 Audi S4/S5/Q5/SQ5 3.0T Supercharged Heat Exchanger Upgrade
CTS B8/B8.5 Audi S4/S5/Q5/SQ5 3.0T Supercharged Heat Exchanger Upgrade

CTS B8/B8.5 Audi S4/S5/Q5/SQ5 3.0T Supercharged Heat Exchanger Upgrade

CTS TURBO
Availability:
in stock, ready to be shipped
SKU CTS-B8S4-AWIC
$559.99 - $559.99
$559.99
$559.99 - $559.99
$559.99
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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. Features:
  • 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
Fitment:
  • 2010-2016 Audi S4 (V6T supercharged)
  • 2010-2017 Audi S5 (V6T supercharged)
  • 2013-2017 Audi Q5 (V6T supercharged)
  • 2014-2017 Audi SQ5 (V6T supercharged)
NB:
  • 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.
  • On B8.5 vehicles (2013 and up), the hose from the top right (90deg outlet) will connect to the lower hose on the stock cooler. The hose from the bottom right (straight outlet) will connect to the upper hose on the stock cooler. Note the hose location before removing the factory cooler.
B8.5 Audi S4 installation by Boost Dynamic Tuning: https://youtu.be/mpQ-r2AaLhE?si=Kx9_w4oVQBbfg3vu

This part also goes by the following cross reference.

Cross Reference Part Number:

Fits These Vehicles 6 applications
S5
Make Model Engine Years
AUDI S5 2008–2017
AUDI S5 (B8/8.5) 2008–2017
S4
Make Model Engine Years
AUDI S4 2010–2016
AUDI S4 (B8/8.5) 2010–2016
SQ5
Make Model Engine Years
AUDI SQ5 2014–2017
AUDI SQ5 (B8/8.5) 2014–2017

Fitment data last updated: 2026-07-28

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