KYOSTAR Cold Air Intake for 2017+ Audi B9 A4 A5 S4 S5 2018+ RS4 RS5 2.0T 2.9T 3.0T

KYOSTAR Cold Air Intake System for Audi B9/B9.5 A4, A5, S4, S5, RS4 & RS5

The KYOSTAR Cold Air Intake System is designed for compatible Audi B9 and B9.5 performance models, providing a less restrictive airflow path than the factory airbox. The open-element layout and reusable high-flow cone filter support improved throttle response, stronger induction sound, and more noticeable turbocharger acoustics during acceleration.

An integrated heat shield helps separate the filter from surrounding engine bay heat while retaining access to the factory fresh-air supply. Designed around the original mounting area, this intake offers a clean OEM-style appearance and is suitable for stock or modified street vehicles when the intake connections match the listed application.

Fitment

• 2017+ Audi B9/B9.5 A4 2.0T

• 2017+ Audi B9/B9.5 A4 Allroad 2.0T

• 2017+ Audi B9/B9.5 A5 Coupe 2.0T

• 2017+ Audi B9/B9.5 A5 Sportback 2.0T

• 2017+ Audi B9/B9.5 A5 Cabriolet 2.0T

• 2017-2019 Audi B9 S4 3.0T

• 2017-2019 Audi B9 S5 Coupe 3.0T

• 2017-2019 Audi B9 S5 Sportback 3.0T

• 2017-2019 Audi B9 S5 Cabriolet 3.0T

• 2018+ Audi B9/B9.5 RS4 Avant 2.9T

• 2018+ Audi B9/B9.5 RS5 Coupe 2.9T

• 2018+ Audi B9/B9.5 RS5 Sportback 2.9T

Note:

• Compatible only with the listed Audi B9/B9.5 applications and matching factory intake connections.

• Compatible engine applications include selected EA888 2.0T and EA839 2.9T/3.0T configurations.

• Not compatible with diesel engines, naturally aspirated engines, or unlisted Audi platforms.

• Please verify the vehicle year, chassis, engine, turbo inlet connection, breather ports, and original intake layout before purchasing.

• Do not purchase based only on vehicle model name, as intake connections can differ between engine variants.

Fitment Note: Factory intake configurations may vary by production date, regional market, emissions equipment, sensor arrangement, and previous modifications. Compare the original airbox, mounting points, breather connections, intake pipe routing, and turbo inlet interface with the product photos before ordering.

Professional installation is recommended. Ensure the filter, clamps, breather hoses, mounting hardware, and all intake connections are properly secured. Check for air leaks before operating the vehicle under boost.

Product Details