The IE Polymer Air Intake System for your Audi B9/B9.5 S4 or S5 delivers easy performance through significant airflow gains. Add up to 19 horsepower and 21ft-lbs of torque on tuned engines while maintaining lowered intake air temps. A factory-like install delivers power, sound, and fun without sacrificing style or quality for your S-class turbocharged V6 engine.
Leading Features
- 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
Polymer Airbox
A special rotomold process is used to manufacture IE’s 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 compromises.
Built-In Velocity Stack
IE’s 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.
Turbo Inlet Upgrade
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 further increases airflow from 37% (intake only) up to a combined 61% over stock!
Turbo inlet pipe is an optional upgrade and can be purchased with your intake or added at a later date.
Hybrid Turbo Ready
The intake and turbo inlet designs offer a straightforward and bolt-in job of available hybrid turbo upgrades. IE’s 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 3.0t intake system & turbo inlet pipe installed with tte810 turbo on world-record 9-second b9 s4
High-Flow Pressure Zones
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.
Turn Up The Fun
The byproduct of a true performance-designed intake is more than power. IE’s uniquely engineered velocity stack, pressure zones, and extensive internal volume also 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.
Precision Design
3D scanning tools are leveraged to create a high-resolution digital environment. This technology allows IE engineers to use all available space for a complete performance design while ensuring a hassle-free fit and installation.
Power Testing
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!
Flow Bench Report
IE’s 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.
Hybrid Turbo Flow Report
Upgrading the turbocharger to a hybrid setup demands even more airflow. The following flow results represent IE’s intake and inlet upgrades with a hybrid turbo adapter.
The 5" air filter surface area and increased air volume improve turbo efficiency.
The internal velocity stack provides a low-turbulence transition from the filter to the inlet.
High & low-pressure zones channel low-temp airflow quickly to the engine while protecting it from radiant engine heat.
Easy Installation
Install your new air intake using basic hand tools in no time. IE’s thermoplastic intake utilizes factory-style mounts that ensure a perfect and hassle-free fit.
- Install time: 20 - 45 minutes
Vehicle Compatibility
What’s Included
- 1x Integrated Engineering Polymer Air Intake
Availability & Shipping
In stock and ships from a US warehouse. Standard Shipping applies to every order — rates are calculated at checkout. Some items may require additional processing time depending on the specific product and current demand. Track your order any time at eurospeed.co/pages/track for a live delivery estimate.
International orders ship via Economy International, with delivery typically 6–18 business days depending on destination and customs.
Delivery time depends on the product. Most in-stock parts ship within days, while carbon fiber and made-to-order items may require production time before they ship. For the specific timeline on any item, check the Availability & Shipping section on that product’s own page — the guide below covers our general shipping types.
Shipping Overview
Depending on the item, free air freight may be available for select carbon fiber components, with estimated shipping around 1–2 weeks after dispatch. Larger hoods, oversized body components, and certain made-to-order items may require sea freight and longer delivery windows. If timing is important, please contact us at support@eurospeed.co before placing your order.
Shipping Coverage
EuroSpeed ships to customers across the United States and internationally. Shipping is included in the price of eligible products for your convenience and covers the initial cost of delivery to your destination.
Import duties, taxes, clearance fees, or customs charges required by your destination country are not included and remain the recipient’s responsibility.
Order Processing & Fulfillment
Every order is reviewed, processed, and prepared before shipment. Most in-stock products are processed within 1–3 business days, though some orders may take up to 5 business days depending on fulfillment location, product type, order volume, or courier pickup timing.
EuroSpeed stocks select high-demand products at our U.S. facility and international fulfillment centers. Because our catalog includes many vehicle-specific and specialty parts, not every product is held in-house at all times.
Some orders may ship through our trusted fulfillment network, which may include verified manufacturing partners, authorized distributors, regional warehouses, and international fulfillment centers.
- Orders may ship from a U.S. warehouse, international warehouse, manufacturer, or authorized fulfillment partner.
- Some products may require additional handling, processing, production, or quality-check time before shipment.
- Orders enter fulfillment shortly after being placed and may no longer be eligible for cancellation once processing, production, or shipment preparation begins.
Custom, Made-To-Order & Oversized Items
Custom, made-to-order, and oversized product categories may include carbon fiber steering wheels, hoods, trunk lids, fenders, front lips, splitters, side skirts, diffusers, bumpers, body kits, widebody components, select spoilers, rear wings, and other large carbon fiber components.
Many carbon fiber items are made to order. Some products may already be stocked and ready to dispatch when available, but if inventory is unavailable, your purchase reserves the next available production slot instead of waiting for a separate restock listing.
Production time: Production can take 1–4 weeks depending on product type, selected options, finish, current queue, and quality-control timing.
Shipping time: Shipping can take 2–10 weeks depending on item size, freight method, destination, customs processing, carrier delays, warehouse transfers, and final delivery location. Carbon fiber steering wheels typically ship faster, with shipping usually taking 3–7 business days after dispatch.
By purchasing custom, made-to-order, or oversized items, you acknowledge and accept the extended production, fulfillment, and shipping timelines associated with these products.
Tracking Updates & Delays
All orders receive a tracking number once generated by the courier. Tracking may take 2–3 business days after dispatch to show movement in the courier’s system.
Certain international, oversized, or freight shipments may show limited updates during transfer between fulfillment locations, warehouses, customs, or final-mile carriers. In some cases, tracking is provided or begins updating once the item reaches a regional warehouse, local carrier, or final delivery network.
Shipping timelines are estimates and are not guaranteed. Delays caused by high order volume, weather conditions, customs inspections, carrier disruptions, production queues, warehouse transfers, holidays, or other external factors may occur and are outside of EuroSpeed’s direct control. These delays do not qualify for cancellations or refunds unless the carrier officially marks the package as lost.
Delivery Responsibility
Upon delivery, carefully inspect the item for visible defects or damage before signing for it. If the item is damaged or not as expected, do not accept the package. Once a damaged or defective product is accepted, EuroSpeed cannot cover return shipping costs.
EuroSpeed is not liable for packages marked as delivered by the carrier. If a package is lost, stolen, or missing after being marked as delivered, the customer must file a claim directly with the shipping carrier. Our team will assist with available documentation when needed.
Shipping addresses typically cannot be changed once an order has been marked as shipped. If an address change is possible through the carrier, any carrier redirect, correction, or address-change fee will be the customer’s responsibility.
Please ensure your shipping address is entered correctly at checkout. Orders shipped to incorrectly provided addresses are the customer’s responsibility. EuroSpeed is not responsible for failed deliveries, additional shipping costs, lost packages, or refunds caused by incorrect shipping information, failure to accept delivery, or failure to collect a package from the post office or carrier pickup location within the required time frame.
Customs, Duties & Import Fees
EuroSpeed’s free shipping policy does not include import fees, taxes, duties, clearance charges, or other fees required by your destination country. These charges are the responsibility of the recipient, and EuroSpeed is not responsible for any duties or taxes requested by local customs.
Most shipments clear customs automatically through the shipping provider. However, if additional information is needed to complete the process, our team will assist where possible to help ensure a smooth resolution.
If customs clearance fails and the item is returned or destroyed:
- EuroSpeed reserves the right to deny refund claims.
- Returned items may incur return shipping fees, which will be deducted from any eligible refund.
- Items deemed too costly to return may be destroyed, and no refund will be issued if this occurs.
Package Protection
For added peace of mind, EuroSpeed offers ShipInsure package protection as an optional service at checkout. When selected, this service provides coverage for lost or damaged packages. EuroSpeed is not responsible for shipping delays, lost packages, or damaged items if purchase protection is not selected during checkout.
- Protects against lost or damaged packages.
- Must be selected at checkout.
- Not all oversized body kit purchases are eligible. Please contact us before ordering if custom insurance arrangements are needed.
To file a claim, please visit our Claims Center.
- Claims must be filed within 14 days of delivery.
- Packages stuck in transit for 14 days are considered lost.
- Damage claims typically require photo evidence.
- A 2-day buffer after delivery may apply before lost or stolen claims can proceed.
- Police reports may be required for orders over $500 or where fraud is suspected.
- “Damaged” means the item is broken and unusable.
Questions?
For questions about your order, shipping timeline, customs clearance, or delivery status, please contact our team at support@eurospeed.co. We’re here to help.
Product Installation & Use Disclaimer
EuroSpeed is not liable for any damages, injuries, fitment issues, installation issues, or vehicle-related problems resulting from the installation, modification, misuse, or use of our products.
Products should be installed carefully and used only as intended. For complex installations, electrical components, performance parts, body components, or products requiring modification, professional installation is recommended to help ensure proper fitment, function, and safety.
Any damage caused by improper installation, misuse, modification, or failure to follow installation requirements is the sole responsibility of the customer. By purchasing, installing, or using this product, you acknowledge and accept all associated risks.