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.
- Refund Policy
+19HP & 21TQ
WITH ECU TUNE
- 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 compromises.
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.
BUILT-IN VELOCITY STACK
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.
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. 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 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. Our 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.
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.
Our cost-effective intake without compromising quality or performance.
/ Integrated Engineering.
Our policy lasts 14 days. If 14 days have gone by since your purchase, unfortunately we can’t offer you a refund or exchange.
To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging.
* Customer must pay for the shipping to the original manufacturer.
Several types of goods are exempt from being returned. Perishable goods such as food, flowers, newspapers or magazines cannot be returned. We also do not accept products that are intimate or sanitary goods, hazardous materials, or flammable liquids or gases.
Additional non-returnable items:
* Gift cards
To complete your return, we require a receipt or proof of purchase.
Please do not send your purchase back to the manufacturer.
There are certain situations where only partial refunds are granted: (if applicable)
* Book with obvious signs of use
* Any item not in its original condition, is damaged or missing parts for reasons not due to our error.
* Any item that is returned more than 14 days after delivery
Refunds (if applicable)
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.
If you are approved, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within a certain amount of days.
Late or missing refunds (if applicable)
If you haven’t received a refund yet, first check your bank account again.
Then contact your credit card company, it may take some time before your refund is officially posted.
Next contact your bank. There is often some processing time before a refund is posted.
If you’ve done all of this and you still have not received your refund yet, please contact us at firstname.lastname@example.org
We only replace items if they are defective or damaged. If you need to exchange it for the same item, send us an email at email@example.com labelled as “Defective Item”
If the item was marked as a gift when purchased and shipped directly to you, you’ll receive a gift credit for the value of your return. Once the returned item is received, a gift certificate will be mailed to you.
If the item wasn’t marked as a gift when purchased, or the gift giver had the order shipped to themselves to give to you later, we will send a refund to the gift giver and he will find out about your return.
You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you receive a refund, the cost of return shipping will be deducted from your refund.
Depending on where you live, the time it may take for your exchanged product to reach you, may vary.
If you are shipping an item over $75, you should consider using a trackable shipping service or purchasing shipping insurance. We don’t guarantee that we will receive your returned item.