Description
The Integrated Engineering (IE) Polymer Air Intake System for the Audi B9/B9.5 S4 & S5 3.0T delivers a powerful combination of increased horsepower, throttle response, and rich turbo acoustics. Engineered to exceed the capabilities of the factory airbox, this intake is a game-changing upgrade for enthusiasts seeking both performance and reliability—whether running the stock turbo or a high-performance hybrid setup.
Proven Power, Superior Flow
Dyno-tested to deliver gains of up to 19 horsepower and 21 lb-ft of torque (with performance software), the IE intake flows 37% more than stock, or up to 61% more with the optional IE cast turbo inlet. Whether you're pushing the limits with a hybrid turbo or maximizing stock potential, this intake is engineered to deliver.
High-Performance Polymer Construction
Manufactured using a specialized rotomolded polymer process, the intake airbox offers superior heat resistance, consistent wall thickness, and strong corners—ideal for maintaining cooler intake temps and maximizing power. Unlike traditional metal intakes, this heat-resistant plastic helps prevent heat soak, keeping performance consistent even in high-demand conditions.
Motorsport-Inspired Velocity Stack
At the core of this intake is an integrated velocity stack, designed to transition airflow from the massive 5” high-flow filter into the turbo inlet with minimal turbulence. This laminar-flow design increases air velocity, reduces drag, and helps maintain a steady, uninterrupted airflow to the turbocharger.
Optional Cast Turbo Inlet for Hybrid Ready Builds
For even greater gains, pair this intake with the optional IE cast aluminum turbo inlet. This upgrade provides the largest possible internal diameter from the filter to the turbo, making it ideal for high-flow and hybrid turbo applications like TTE or Pure Turbos. Turbo-specific CNC-machined adapter rings (sold separately) ensure a leak-free, precision fit.
Dual Pressure Zone Design
This intake utilizes multi-zone airflow engineering—pulling in cool, high-pressure air from the front grille and supplementing from low-pressure zones via integrated louvers. This ensures maximum airflow under all driving conditions, from daily driving to high-performance track builds.
Aggressive Sound, OE-Level Fit
In addition to power gains, the IE intake delivers aggressive turbo spool, throttle, and blow-off valve acoustics, bringing a motorsport-inspired soundtrack to your S4 or S5. Installation is easy, using factory-style mounts and premium hardware for a no-hassle fit and finish that looks as good as it performs.
Key Features:
-
Fits Audi B9/B9.5 S4 & S5 3.0T (2017–2023)
-
Up to 19HP & 21ft-lbs torque gain with tune
-
37% more airflow over stock (61% with IE inlet)
-
Constructed from heat-resistant rotomold polymer
-
Includes massive 5" air filter
-
Integrated velocity stack for smooth, high-velocity airflow
-
Designed for use with stock or hybrid turbos
-
Optional IE cast turbo inlet upgrade available
-
CNC-machined adapter rings available for hybrid turbos
-
Aggressive engine & turbo sound
-
Quick install time: 20–45 minutes
Take your Audi S4 or S5 to the next level with a premium intake system designed for true enthusiasts—engineered to perform and built to last.
