Eventuri Carbon Fibre Performance Intake Kit for RS4 & RS5 (2017+, B9 F5)
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Performance Gain: 11-16hp, 12-17ft-lb At The Wheels
The Audi B9 RS4/RS5 Eventuri intake was developed to give less restrictive airflow to the turbo whilst maintaining low inlet temperatures. The RS5/RS4 engine bay becomes heat soaked very quickly so simply having an open cone system would result in better airflow but with higher inlet temperatures. We therefore completely re-engineered the inlet track from the turbo inlet pipe to the front grill with a highly efficient sealed system. The restrictive stock airbox and flexible plastic inlet pipe have been replaced with a Venturi filter housing and a duct system with smooth transitions. Furthermore, by removing the convoluted stock inlet pipe and replacing it with our one-piece Venturi housing and solid tube, the airflow is much smoother as it enters the turbo inlet tube. The resulting performance gains and aesthetics are industry leading for this platform.
The Eventuri Difference
The B9 RS4/RS5 Eventuri system uses our Patent Pending Carbon fibre Housings with our bespoke Gen-2 filter which provide an aerodynamically efficient airflow path from the filter to the inlet tubes. Not just another cone filter with a heat shield but a unique design which invokes the Venturi effect. You can read more about the housing design and how it worksHERE
Performance
Below is an independent dyno graph showing the comparison between the Eventuri and the stock airbox on a B9 RS5. The car had no other modifications. As you can see, power and torque are increased through a large portion of the rpm range. This translates on the road to increased part throttle and full throttle response with the car pulling much more eagerly to the redline. The testing was done on the same day back-to-back and temperatures were monitored to ensure consistency. The bonnet was closed for all runs.
Dyno (Click to Enlarge)
The gains are from a combination of reasons:
1) The sealed system keeps IATs low - especially with the front air scoop which forces air into the system.
2) The Venturi housing provides a smooth transition from the filter to the intake tube with no convoluted rubber section. This helps the turbo to run more efficiently by maintaining laminar flow in the inlet track.
3) The entire system is constructed from pure pre-preg carbon fibre which is great at insulating from heat.
Product Details
The Eventuri B9 RS4/RS5 intake system consists of a number of components engineered to perform a specific purpose and fabricated to the highest of standards. Here are the details for each component and the design ethos behind them:
Each intake system consists of:
- Carbon Fiber Venturi housing with intergated tube
- High Flow Generation 2 Filter
- Carbon Fiber Intake Duct
- Carbon Fiber Front Scoop
- Carbon Fiber Secondary Duct
- High Quality Silicon Couplers and OEM Spec Hose Clamps
- Laser Cut Stainless Steel Bracket Work
- CNC Machined Mounting Stubs
Carbon Intake Housing Assembly
The filter housing comprises of our bespoke generation 2 filter, the carbon pod and integrated tube. The carbon pod shrouds the reverse mounted filter and smoothly shapes the airflow down to the turbo tube which it matches in diameter to the turbo tube. This is a key feature of the intake design where we have removed the requirement for a convoluted rubber hose between the intake and the engine. The filter housing and integrated tube extends all the way to the stock turbo tube and by mounting this to the engine, the entire filter housing moves with the engine. As the engine and filter housing moves under acceleration, it is able to maintain a seal to the duct through the use of an expanding rubber extrusion which is mounted to the face of the duct (see below).
This smooth reduction in cross sectional area invokes the Venturi effect where the airflow accelerates whilst maintaining laminar conditions. It can be thought of as a large velocity stack - below is a diagram to show the comparison between our patent pending design and a regular intake system. Our bespoke filters aid the airflow moving through the housings and allow for an even velocity profile as the airflow exits the housings. Further details can be read in the Technology and Filters pages.
Carbon Fiber Intake Duct
The duct channels ambient air from the scoop to the filter housing. It also creates a sealed volume of ambient air before the filter so that there is a ready supply which the filter can draw from. The duct has been designed to take maximum advantage of the volume available in the engine bay. In order to ensure a good seal against engine bay heat - the duct also has a flexible rubber edging around the openings which press against the filter housing and OEM front duct creating the desired seal yet allowing the housing to move with the engine. To further enhance the airflow we added a secondary opening at the rear of the duct in the cold region of the engine bay. This geometrically complex piece is a key part of our B9 S4/S5 design.
Carbon Fiber Secondary Duct
For the complete carbon fiber setup we have also crafted the secondary duct from carbon. This part connects the main carbon duct to the air entry region on the slam panel. It eliminates the holes on the OEM part and matches the rest of the system for a more finished aesthetic.
Carbon Fiber Air Scoop
The final carbon components in this system is the front scoop - essential to direct ambient air to the duct and then to the filter.
The scoop was designed with a constant bend radius for maximum efficiency in directing the incoming air to the duct opening. It allows the inlet air temperatures to be as low as possible and increase the rate of drop in IATs after the system is heat soaked during a standstill.
Custom Bracket Work
To ensure a perfect fit we spend a lot of development time on the mounting hardware. Like all our intakes, the brackets are specifically designed for the application and for the B9 S4/S5 system, the brackets are laser cut from stainless steel and then powder coated for durability. The CNC machined mounts are then secured to the brackets and push into the stock rubber mounts which the stock airbox uses to secure to. This ensures our intake fits just like the OEM system.
All the components come together in the engine bay to produce a genuine improvement in the driving experience as well as providing an incredible visual display of form and function in complete harmony.
Eventuri
Eventuri was founded by a team of engineers and enthusiasts with a background in Aeronautics and tuning – all sharing a passion for cars and performance. After owning various intakes over many years for our own cars and being disappointed with the gains which seldom lived up to their claims – we decided to take things into our own hands and rewrite the book. To set a new benchmark in intake design and technology, above all – to engineer systems which provide real gains and then to publish genuine figures.
Installation
We recommend seeking professional assistance when looking to install products. AUTOID has partnered with a number of dealers around the world to enable you to walk in and have items fitted locally.
We also offer fitting at the AUTOID HQ in Brentwood, Essex. Please contact us at info@autoid.co or +441277 366893 in order to make an appointment.
Disclaimer, Warranty, Shipping and Returns
DISCLAIMER
AUTOID Ltd. products and those from our partners, sold via our website, are for racing and competition only, not for road or off-road use. Use is restricted to events with official motorsport organisation approval. Compliance with UK, US, or other nations' laws is the buyer's responsibility. AUTOID Ltd. makes no warranty regarding the legality of road use.
WARRANTY
We stand by every product in the AUTOID store. Therefore, all products are delivered with a warranty.
All parts built by our third party partners on the store feature a minimum one-year manufacturers warranty.
Warranty terms are the same across every product and covers any manufacturing defects that could occur over time, outside of usual wear and tear.
SHIPPING
We offer worldwide shipping on every product we stock on the AUTOID store.
RETURNS
We have a 14-day return policy, you have 14 days after receiving your item to request a return and then 14 days from the point of us accepting the return to return the goods to us. However, some items are non-returnable please visit our policies page here.
Should you need assistance with shipping, fitting or a return, please contact a member of the team by phone or email at +441277 366893 or info@autoid.co.
Finance
Looking for a bit of flexibility when it comes to paying? We've got you covered. AUTOID has partnered with a number of payment providers to ensure a seamless buying experience.
Klarna
Select 'Klarna' at checkout to benefit from a number of finance options at checkout including:
- Pay Later - Delay payment by up to 30 days, interest free
- Split Payments - Split payments in 3 up to 3 months, interest free
- Installments - Split payments up to 6 months interest-free, up to 24 months interest bearing.
6 months - Interest-free Credit- Minimum: £250- Maximum: £5,000- 0% down payment/deposit12 months - Interest-free Credit- Minimum: £250- Maximum: £5,000Deposits are available and determined by the customer:
- 0% down payment for orders between £250 and £1000 (orders cannot be below £250)
- 10% - 50% down payment for orders between £1000.01 and £500024 months - Interest-bearing Credit - 18.9%- Minimum: £250- Maximum: £5,000
Deposits are available and determined by the customer:
- 0% down payment for orders between £250 and £1000 (orders cannot be below £250)
- 10% - 50% down payment for orders between £1,000.01 and £5,000
Klarna's Pay in 3 / Pay in 30 days are unregulated credit agreements. Borrowing more than you can afford or paying late may negatively impact your financial status and ability to obtain credit. 18+, UK residents only. Subject to status. Ts&Cs and late fees apply.
Clearpay
Clearpay lends you a fixed amount of credit to allow you to pay for your purchase over 4 instalments (T&C's and eligibility criteria apply). They're ideal for purchases under £1000 and always offer interest-free*. For more details on how to use Clearpay to secure your order, get in touch with our team.
0% Interest. Select 'Clearpay' at checkout.
Please shop responsibly and visit lender websites for more information. All finance options are suitable for individuals 18+.
FAQ
Got a question? You'll most likely find your answer below.
Anything else, drop us a message.
Can I finance my order?
Yes. We offer a range of finance products.
We offer the widely adopted Klarna and ClearPay for split weekly payments.
We also offer longer term instalments via Klarna and NewPay.
Please speak to a member of our team using the live chat or via email at sales@autoid.co if you have any further questions.
What's your return policy?
Our policy lasts 14 days. If 14 days have gone by since your product arrives with you, unfortunately we can’t offer you a refund or exchange.
You can read our full returns policy here.
Do you ship worldwide?
Yes. We ship worldwide. We have shipped to over 75 countries to date.
Will my products include a warranty?
Yes. All products sold on the AUTOID store include a minimum 6 month warranty in addition to any manufacturer warranties (which may supersede this period). For more information on warranties, check our terms.
Please speak to a member of our team using the live chat or via email at sales@autoid.co if you have any further questions.
How long will it take to arrive?
Delivery times will vary depending on product, time of year, location and courier used.
Generally items in the UK will arrive within 1-3 days for express shipping and 2-5 days for standard or free shipping.
For shipping outside of the UK, times will vary from 2-5 days for express shipping and 3-10 days for standard shipping.
Please speak to a member of our team using the live chat or via email at sales@autoid.co if you have any further questions.
Will these products effect my vehicle warranty?
Some modifications can affect the manufacturer warranty provided with your vehicle.
Whilst AUTOID can advise, we cannot confirm if a product will or will not affect your vehicle warranty. It's always advised to check with your dealer and finance provider prior to purchasing and installing parts.
Please speak to a member of our team using the live chat or via email at sales@autoid.co if you have any further questions.
Will this fit my car?
Please check the product page of the product in question, we include fitment information on every product.
If this information is missing, please speak to a member of our team using the live chat or via email at sales@autoid.co if you have any further questions.
Can you install my products for me?
Yes. We offer fitting at our HQ in Brentwood, Essex, UK.
Checkout with your products and select 'Collect from AUTOID'. A member of our team will then reach out to you to quote you a cost and book you in.
Alternatively, speak to a member of our team using the live chat or via email at sales@autoid.co if you have any further questions.