*Discontinued; Stock remaining only*
Performance Gains (FK2 Stage 2 Tune): 15-18 hp, 17-20 ft-lb
Performance Gains (FK8 Stock Software): Peak 5 hp, 5 ft-lb; up to 15 hp and 18 ft-lb below 4,000 rpm
Introducing the world's first all-carbon FK8 turbo inlet tube. We spent months of intensive R&D developing an inlet that makes no compromises. We aimed to satisfy three key design criteria: volume, flow, and temperature.
1) Volume: Inlet Diameter – Eventuri 78mm vs. Stock 63mm. By maintaining the airflow section diameter from the intake to the turbo tube, we increased the cross-sectional area of the majority of the air path to the turbo by over 53%. The Eventuri tube, with its significantly enlarged inner diameter, encapsulates a larger internal volume without restricting the flow path to the turbo. This allows the turbo to operate more efficiently and spool up to peak boost levels faster, while also reducing turbine load at peak boost.
2) Flow: Larger internal volume is meaningless without a smooth flow path to the turbo. By using heat-resistant pre-preg carbon fiber, we achieved a smooth internal surface. In contrast, the stock inlet tube is cast aluminum with a rough interior. Combined with the smooth curvature of the elbow, this creates a path that minimizes turbulence.
3) Temperature: The final criterion was to minimize heat transfer to the airflow. The stock inlet is connected directly to the turbo, causing heat to transfer instantly as the turbo spins. In our system, by using a machined flange that connects to the turbo and a silicone hose with an integrated thermal spacer, we prevent the carbon elbow from coming into direct contact with the turbo. This barrier and the low through-thickness thermal conductivity of carbon fiber reduce heat transfer to the airflow.
Note: Compatible with V2 MAF tube Eventuri Intakes (78mm) only - Please check the photo to identify which MAF tube type you have. Eventuri V2 intake sold separately.
Package Contents:
- Carbon Fiber Turbo Tube
- Custom Silicone Joiner (Intake Side)
- CNC-machined Turbo Flange
- Custom Silicone Hose (Turbo Side)
- Laser-cut Stainless Steel Bracket
- Anti-vibration Mounts
Before You Order
〇 Regarding Import Consumption Tax
At Shaft-ya Shopping Site, we cover 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 product database is based on North American vehicle specifications (USDM). Please confirm compatibility with Japanese vehicle specifications (JDM) before placing an order. (If you are unsure whether a listed product is compatible with your vehicle, please feel free to contact us. Our support team will be happy to look into it for you.)
If an order is placed without verifying compatibility, we cannot accept returns due to incompatibility.
Please note that even if products are filtered by year, make, and model using the tabs on our top page, this does not guarantee a direct fit for Japanese market vehicles without modification.
All product information has been translated into Japanese using software. There may be confusing expressions, so please contact us if you have any questions before ordering.
○ 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 automatic calculation. In such cases, we will contact you individually by email.
All products are generally shipped internationally from our U.S. warehouse. Unlike domestic shipping in Japan, international delivery takes approximately 7 to 14 days, so please allow ample time when ordering. If you are in a hurry, please contact us in advance to confirm delivery times. All products are shipped via air freight; we do not use sea freight.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
The products we handle are designed and manufactured outside of Japan. Please note that they are not compliant with the "Japanese Vehicle Inspection (Shaken) system," and we cannot provide documents such as strength calculation sheets for Japanese inspection purposes. 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 check the contents immediately upon arrival. Since all products are shipped internationally from outside Japan, there may be cases of shipping damage to the packaging or the product. For items with shipping damage, defective products, or incorrect items, we will only accept returns, refunds, or exchanges if we are notified within 7 days of receipt. Please understand that for products sold through us, warranty support will be provided "only through us." We do not provide support through other companies or distributors located within Japan.