IE Polymer Air Intake System For Audi B9/B9.5 S4 & S5 3.0T



IE Polymer Air Intake System For Audi B9/B9.5 S4 & S5 3.0T

● Rotomold polymer for superior heat resistance
● Up to 19HP & 21ft-lbs over stock (with software)
● Flow 37% more than the factory airbox
● Flow 61% more than stock with IE turbo inlet
● Increased turbo & engine sounds
● Maximized turbo & engine efficiency
● Huge 5″ air filter for excellent laminar flow
● Integrated velocity stack for smooth airflow
● High pressure & low pressure air zones
● Designed for stock turbo and hybrids (with IE turbo inlet)
● Factory style mounts for reliable & easy installation
● All stainless hardware
● Multi-ply silicone with stop-flat edges
● High-quality clamps
● Powder-coated aluminum filter plate & velocity stack
● Stainless laser-etched logo plate

A special rotomold process is used to manufacture our premium polymer 3.0T intake airbox.
This method leverages complex shapes and angles to maximize internal volume for air supply
and smooth flow for a true performance design. This molding style also produces consistent wall
thickness, strong corners, and superior heat resistance for a cost-friendly intake without

The entire intake is designed as a single-piece airbox to offer a seamless and complete look
with an above factory quality fit and finish.

Our motorsport-designed velocity stack creates a smooth transition from the large filter area to
the turbo inlet with excellent laminar properties. This uniquely engineered detail produces a high
inertia flow with reduced drag and power-robbing turbulence.

Adding the optional cast turbo inlet upgrade further reduces significant air restrictions while
maintaining the largest size possible from the airbox to the turbocharger. The intake and turbo
inlet combination further increases airflow from 37% (intake only) up to a combined 61% over
stock! Turbo inlet pipe is an optional upgrade and sold separately

The intake and turbo inlet designs offer a straightforward and bolt-in job of available hybrid turbo
upgrades. Our turbo-specific CNC-machined and o ring sealed adapters always maintain the
largest size possible without introducing flow restrictions. Upgrading to a TTE or Pure Turbo
hybrid is easy, simple, and hassle-free. Hybrid turbo adapter rings are sold separately from the
turbo inlet upgrade.

IE’s multi-zone intake design delivers all the performance benefits of an open-filter intake while
maintaining protection from hot engine bay air from under the hood. A constant ram air supply is
forced in from the grille inlet, while any additional air demands are supplied from the
low-pressure zone through the filter plate louvers. This dual-zone approach ensures airflow
demands for any power level, even the most extreme builds.

The byproduct of a true performance-designed intake is more than power. Our uniquely
engineered velocity stack, pressure zones, and extensive internal volume work together to
release a myriad of turbo spools, engine throttle, and diverter blow-off sounds that transform
your S4 or S5 with the under-hood acoustics of a genuine sports car.

Every inch of this intake system design has evolved from countless revisions, rapid prototyping,
flow bench testing, dyno runs, and real-world verification to maximize performance benefits. The
result is power gains of up to 19WHP and 21ft-lbs of torque, with even higher gains possible on
hybrid turbo setups!

Our polymer intake provides consistent gains of up to 61.43% CFM over stock during
back-to-back flow bench testing! This increase in CFM proves the upgraded intake system’s
efficiency over the factory parts and capability to provide any required airflow demands from
ECU tunes and hybrid turbocharger upgrades.

Install your new air intake using basic hand tools in no time. Our thermoplastic intake utilizes
factory-style mounts that ensure a perfect and hassle-free fit. Install time: 20 – 45 minutes


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Year Make Model
Year Make Model
2017 - 2022 Audi S4
2017 - 2022 Audi S5

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