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IE Polymer Air Intake System For Audi B8 S4 & S5
IE Polymer Air Intake System For Audi B8 S4 & S5
IE Polymer Air Intake System For Audi B8 S4 & S5
IE Polymer Air Intake System For Audi B8 S4 & S5
IE Polymer Air Intake System For Audi B8 S4 & S5
IE Polymer Air Intake System For Audi B8 S4 & S5
IE Polymer Air Intake System For Audi B8 S4 & S5
Part # IEINCG5
UPC

IE Polymer Air Intake System For Audi B8 S4 & S5

$672.09
✓
Verify fitment for your vehicle Select your vehicle to confirm this part fits.
Available from Manufacturer iItem is available to order from our manufacturer / supplier network. Shipping times can vary.

Item available to order from the manufacturer

Expected to ship betweenNovember 19 and November 23, 2026

Please read our shipping policy and refund policy prior to ordering.

    RECENTLY VIEWED PRODUCTS

    DESCRIPTION

    Features

    • Heat-resistant polymer construction
    • Up to +25HP gains with tuning
    • Amplified supercharger whine
    • Massive 5.5" air filter for high-flow performance
    • Integrated velocity stack for smooth airflow
    • Powder-coated aluminum inlet pipe
    • Quick and reliable installation with stock-style mounting
    • DESIGN
    • PERFORMANCE
    • INSTALLATION

    High-volume / High-flow / Low-temp

    The iE Polymer Air Intake System redefines your Audi B8/B8.5 S4 or S5’s driving experience with impressive power gains, thrilling supercharger sounds, and a sleek, motorsport-inspired design. Crafted from high-performance polymer, this intake delivers cooler, uninterrupted airflow to your engine, maximizing performance while offering effortless installation with factory-style mounting.

    Watch the video▶  Watch the video

    Polymer Advantage

    Engineered with rotomold polymer, this intake delivers superior heat resistance and durability while maintaining a lightweight and cost-effective design. It's the cost effective innovative intake system delivering true motorsport performance without compromise .

    POLYMER ADVANTAGE

    Unleash The Whine

    UNLEASH THE WHINE

    Stock airboxes suppress your Audi’s true personality. With the iE Polymer Air Intake, every throttle blip and supercharger whine becomes an orchestra of pure performance sounds that will be music to your ears.

    Integrated Velocity Stack

    Our built-in 5.5" velocity stack transforms airflow, creating a seamless transition to the engine for maximum power and efficiency. This smooth segue reduces drag and power-robbing turbulence at the critical point as air enters the supercharger.

    INTEGRATED VELOCITY STACK

    Dual Air Zones

    Fresh, cold air flows freely from multiple sources, with high and low-pressure zones working together to deliver uninterrupted airflow directly to your supercharger. Cool air is forced in through the front grille, while the open-bottom design pulls additional fresh air from behind the bumper. The intake is shielded to block radiant heat from the engine bay, ensuring only the coolest air enters the system for maximum performance.

    Throttle Body Ready

    THROTTLE BODY READY

    Pair your intake with the iE 3.0T Throttle Body Kit for even more power. The iE 80mm Throttle Body Kit includes a larger inlet adapter making it a direct fit to the iE Polymer Intake System, further maximizing airflow. No extra parts or modifications are required.

    iE Throttle Body Kit sold separately.

    Dyno Results

    Countless design revisions, rapid prototyping, flow bench testing, dyno runs, and real-world verification has resulted in a performance intake design with power gains of up to +21 WHP on tuned engines ! Performance data was collected during controlled testing on our own in-house dyno facility. Multiple back to back runs were performed on a dual pulley stage 2 B8 S4 in exacting conditions; the only change made to the vehicle between runs is the swap from stock to the iE Polymer Air Intake System.

    DYNO RESULTS

    Flow Results

    FLOW RESULTS

    Flow testing confirms consistent airflow gains up to +73% CFM over the stock setup, allowing your engine to breathe freely at any power level. By increasing airflow and volume, our intake design ensures smooth, unrestricted power delivery from ECU tunes and performance hardware upgrades.

    The above gains are a result of various design details:

    1. The 5" air filter surface area and increased air volume improve efficiency.
    2. The internal velocity stack provides a low-turbulence transition.
    3. High & low-pressure zones channel low-temp airflow quickly to the engine while protecting it from radiant engine heat.
    FLOW RESULTS
    In. H2O STOCK CFM iE CFM Increase %
    5 189 327 73.02%
    10 281 473 68.33%
    15 351 581 65.53%
    20 410 673 64.15%
    25 459 753 65.05%
    30 506 823 62.65%

    Install

    TimeAround 20-30 minutes

    Fitment notes: Note: Does not fit early model year S5 with V8 engines.

    ToolsBasic hand tools

    Install your new air intake with basic hand tools in only minutes. Our polymer intake is a direct factory upgrade with stock-style mounts for a perfect, hassle-free installation.

    Installation guide (PDF)

    Precision Design

    Please your inner perfectionist. 3D scanning tools are leveraged to create a high-resolution digital environment allowing our engineers to take advantage of all available space for a complete performance design while ensuring a perfect alignment and fit. Even first-time installers will appreciate the straightforward, no guesswork design.

    PRECISION DESIGN
    VEHICLE LIST
    DIMENSIONS
    DOCUMENTS
    AVAILABILITY

    Please read before ordering. Eurosport Performance does not carry live inventory on this site. Most products are ordered for you directly from the manufacturer or our suppliers, and we follow their lead times. Placing an order confirms you have read and accepted the availability terms below.

    In stock
    Ships within 24 to 48 hours
    Products marked in stock are on our shelves in Montreal and leave within one to two business days.
    Ordered for you
    Most orders ship in 5 to 7 business days
    Everything else is ordered from the manufacturer or supplier when you order. Delays can occur; if they do, we contact you.
    Supplier lead times apply
    If a product is not listed as in stock here and is on backorder at the manufacturer, it will most likely be on backorder for us too. We will tell you as soon as we know.
    We keep you informed
    You receive a confirmation when the order is placed, a notice if a delay comes up, and tracking the moment it ships.
    Frequently asked questions
    Is this product in stock right now?

    Only products explicitly marked in stock are on our shelves. For everything else, the fastest way to know the current lead time is to ask us before you order; we check with the supplier and reply with a date.

    Why does my order say "confirmed" but has not shipped?

    Confirmed means we have placed the order with the manufacturer or supplier on your behalf. Shipping follows once the part reaches us or ships directly to you, usually within 5 to 7 business days for products that are available at the source.

    What happens if the part is on backorder?

    We tell you as soon as the supplier confirms it, with the expected date when they give one. You can keep the order open, switch to an alternative we suggest, or cancel for a full refund before the part ships.

    Can I cancel if it is taking too long?

    Yes. Any order that has not shipped can be cancelled by contacting us, and the refund goes back to your original payment method. Please contact us rather than opening a dispute with your bank: a cancellation takes us minutes, a chargeback takes weeks and freezes the refund in the meantime.

    Do you ship directly from the manufacturer?

    Sometimes. Larger or special-order items can ship to you directly from the supplier to save days in transit. You still receive tracking from us either way.

    Where do my parts ship from, and are there duties?

    Orders ship from Montreal or directly from our suppliers. For Canadian addresses the price you pay is the price, with no import or duty fees added on delivery. See our shipping policy for details.

    How will I know when it ships?

    You get an email with the tracking number the moment the label is created, and you can follow the order in your account on the site or in the SPECD app.

    Want a lead time before you order? Email us or use the contact page with the product name and your vehicle, and we will confirm availability with the supplier.

    WARRANTY

    Products are warrantied by their manufacturer. Eurosport Performance is an authorized reseller: every part we sell is covered by the manufacturer's own warranty, with its own terms and duration. Claims go through us, so you deal with Eurosport Performance rather than a form on the brand's site, but whether a claim is accepted is the manufacturer's decision.

    Manufacturer terms apply
    Duration and coverage are set by the brand and differ from one to the next: some cover one year, some a lifetime, some only the original purchaser. The brand's warranty page is the reference; ask us if you cannot find it.
    We file the claim for you
    Contact us with your order number, photos and a description of the issue. We open the claim with the manufacturer, follow it up, and arrange the repair, replacement or credit they approve. The manufacturer decides whether the claim is accepted.
    Fitment guarantee: North America only
    We guarantee fitment for vehicles sold in the North American market. Vehicles from other markets are out of scope; specifications differ, and it is the customer's responsibility to confirm compatibility before ordering.
    No warranty on tuning files
    ECU and TCU tunes and other software files are sold without warranty and are not returnable once delivered or flashed. Tuning can affect your vehicle's factory warranty; please read the brand's terms before purchasing.
    Proof of purchase
    Your Eurosport Performance order is the proof of purchase every manufacturer asks for. Keep the order confirmation; it is also in your account on the site and in the SPECD app.
    What is usually not covered
    Damage from improper installation, modification, abuse, racing or an incorrect application for the vehicle, and normal wear items such as pads, clutch discs and filters. Shipping and labour are covered only when the manufacturer's terms say so.
    Frequently asked questions
    How long is the warranty on this product?

    It is the manufacturer's warranty for that product. Where the brand publishes it, we note it in the description; otherwise contact us before ordering and we will confirm the exact terms with them.

    A part failed. What do I do?

    Stop using it if it is a safety-related part, then contact us with your order number, clear photos, and when and how the issue appeared. Do not return anything until we confirm the claim; manufacturers often require an inspection or an authorization number first.

    Who decides if my claim is accepted?

    The manufacturer. We prepare and submit the claim, provide the proof of purchase and push for a fair outcome, but acceptance, replacement or credit is their call under their terms. We pass their decision on to you as soon as we have it.

    How long does a claim take?

    It depends on the manufacturer. Simple cases are approved in days; claims that need the part inspected can take a few weeks. We keep you updated at each step and push when it drags.

    Is there a warranty on ECU or TCU tunes?

    No. Tuning files are software; once delivered or flashed they cannot be returned, and they carry no warranty from Eurosport Performance or, in most cases, from the tuner. Support for the tune itself (revisions, flashing questions) comes from the tuning brand under its own terms.

    My car is from outside North America. Is fitment guaranteed?

    No. Our fitment guarantee covers vehicles sold in the North American market only. European, Japanese and other market vehicles can differ in engines, electronics and dimensions, and a part listed for the North American model is not guaranteed to fit. If you order for one of these vehicles, confirming compatibility is your responsibility, and fitment issues on such vehicles are not covered by returns or warranty.

    Is installation covered?

    Labour is not covered unless the manufacturer's terms specifically include it. Having the part installed by a qualified shop protects your claim: improper installation is the most common reason a manufacturer declines.

    Is a warranty issue the same as a return?

    No. Returns cover unused parts you no longer want, under our refund policy. Warranty covers a part that fails in use, under the manufacturer's terms. If you are unsure which applies, contact us and we will point you to the right one; please do not open a bank dispute, as it pauses both processes.

    Questions about coverage before you buy? Email us with the product and your vehicle and we will confirm the manufacturer's terms.

    REVIEWS