Diffusers work in conjunction with
To direct high-velocity airflow coming from under the car, the diffuser redirects the high-velocity airflow to smoothly transition into the low-pressure vacuum at the rear. This creates a smoother flow of air under the car and improves the performance of other aerodynamic components such as aerodynamic wings.
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 there will be no additional charges other than the total amount paid at checkout.
〇Confirmation of Compatibility
Our entire product database is based on North American vehicles (USDM cars), so please check whether or not they can be installed on Japanese vehicles (JDM cars) 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 be happy to look into it for you.)
If you place an order without confirming compatibility, we cannot accept returns due to incompatibility.
Please note that even if products are sorted by selecting the year, manufacturer, and vehicle model in the tabs on our top page, this does not necessarily mean they are compatible with Japanese model vehicles without modification.
All products have been translated into Japanese using translation software. There may be confusing expressions, so please contact us if you have any questions before ordering.
○ Regarding Shipping
Shipping costs are paid at the time of checkout. Shipping estimates are automatically calculated when you enter your shipping address on the checkout page. For large items such as body parts, there are rare cases where there is a significant discrepancy between the automatically calculated shipping amount and the actual shipping cost. In such cases, we will contact you individually via email.
In principle, all products are shipped internationally from our US warehouse. Unlike domestic shipping in Japan, international shipping takes about 7 to 14 days, so please order with plenty of time. If you are in a hurry, please contact us in advance to check the delivery date. All products are transported by air. They will not be shipped by sea.
○ Regarding Japanese Vehicle Inspection Compatibility
All products we handle are basically designed and manufactured outside of Japan. Please note that they are not compliant with "Japanese vehicle inspection standards" at all, and we cannot provide strength evaluation documents or the like for Japanese vehicle inspection standards. Therefore, all parts are sold for the purpose of "use on circuits, private land, or off-road," so please install and use them at your own risk.
○ Regarding Warranty
Please check the contents immediately upon arrival. Since all products are shipped internationally from outside Japan, the packaging boxes and products may be damaged during shipping. Please understand that we will only handle returns, refunds, and replacements for products with shipping damage, defective products, or incorrect items if you contact us within 7 days of receipt. Please note that for products sold through us, we will only handle warranty-related matters "through us." Please note that we do not handle matters through other companies or distributors located in Japan.