Performance Gain: 13-17hp, 15-20ft-lb
V-Box Acceleration: 60-130mph reduced by 0.5 seconds
The Eventuri intake for the Audi B9 S4/S5 was developed to keep intake temperatures low without restricting airflow to the turbocharger. Because the S5/S4 engine bay heats up rapidly, simply adopting an open cone system would improve airflow but result in increased intake temperatures. Therefore, we completely redesigned the inlet track from the turbo inlet pipe to the front grille into a highly efficient sealed system. The previous airbox, which was highly restrictive, and the flexible plastic inlet pipe were replaced with a Venturi filter housing and a duct system that achieves a smooth transition. Furthermore, by removing the convoluted stock inlet pipe and replacing it with an integrated Venturi housing and solid tube, the airflow to the turbo inlet tube becomes smoother. As a result, this platform achieves industry-leading performance gains and aesthetics.
The Eventuri B9 S4/S5 intake system is composed of numerous components designed to serve a specific purpose and manufactured to the highest standards. The details of each component and the design philosophy behind them are as follows.
Each intake system includes:
- Carbon fiber Venturi housing with integrated tube
- High-flow Generation 2 filter
- Carbon fiber intake duct
- Carbon fiber front scoop
- High-quality silicone hoses and OEM-spec hose clamps
- Laser-cut stainless steel brackets
- CNC-machined mounting stubs
Before Ordering
〇 Regarding Import Consumption Tax
At the Shafutoya shopping site, we pay the import consumption tax incurred at the time of import on your behalf, so you will not be charged any additional fees beyond the total amount paid at checkout.
〇Confirmation of Compatibility
Our entire product database is based on North American vehicles (USDM), so please confirm whether the product can be installed on Japanese domestic vehicles (JDM) before ordering. (If you are unsure if a listed product is compatible with your vehicle, please feel free to contact us. Our support team will investigate for you.)
If you place an order without confirming compatibility, we cannot accept returns due to incompatibility.
Please note that even if items are sorted by selecting the year, manufacturer, and vehicle model in the tabs on our homepage, it does not necessarily mean they will fit Japanese model vehicles without modification.
All products have been translated into Japanese using translation software. As there may be confusing expressions, please contact us before ordering if you have any questions.
○ Regarding Delivery
Shipping costs are paid at the time of payment. Shipping estimates are calculated automatically when you enter your shipping address on the checkout page. For large items such as body parts, the actual shipping cost may occasionally differ significantly from the amount automatically calculated. In such cases, we will contact you individually by email.
All products are generally shipped internationally from our U.S. warehouse. Unlike domestic Japanese shipping, international shipping takes about 7 to 14 days, so please allow plenty of time when ordering. If you are in a hurry, please contact us in advance to confirm delivery times. Please note that all products are transported by air; they are never shipped by sea freight.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
The products we handle are basically all designed and manufactured outside of Japan. Please note that they are not compliant with the "Japanese Vehicle Inspection System," and we cannot provide documents such as strength calculation reports for Japanese inspections. Therefore, all parts are sold for the purpose of "circuit use, private land, or off-road use," and installation and use are at your own risk.
○ Regarding Warranty
Please inspect the contents immediately upon arrival. Since all products are shipped internationally from outside Japan, there may be shipping damage to the packaging or the product itself. Please understand that we will only handle returns, refunds, or exchanges for products with shipping damage, defective products, or items different from what was ordered if you contact us within 7 days of receipt. Please note that for products sold through us, warranty-related support will be handled "only through us." We do not provide support through other companies or distributors located within Japan.