Diffusers work in tandem
To guide the high-speed airflow coming from under the car, the diffuser redirects the high-speed airflow to transition smoothly into the low-pressure vacuum at the rear. This creates smoother airflow under the car and improves the performance of other aerodynamic components such as aerodynamic wings.
Before Placing an Order
〇Regarding Import Consumption Tax
At 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 beyond the total amount paid at checkout.
〇Confirmation of Compatibility
Since our entire product database is based on North American vehicles (USDM), please confirm whether the product can be installed on a Japanese vehicle (JDM) before placing your order. (If you are unsure whether the listed product is compatible with your vehicle, please feel free to contact us. Our support team will check 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 using the tabs on our home page, 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 Shipping
Shipping costs are paid at the time of checkout. Shipping cost estimates are automatically calculated once 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 difference between the automatically calculated shipping amount and the actual shipping cost. In such cases, we will contact you individually by email.
Basically, all products are shipped internationally from our US warehouse. Unlike domestic shipping in Japan, international shipping takes about 7 to 14 days, so please allow plenty of time when ordering. If you are in a hurry, please inquire about delivery times in advance. Please note that all products are transported by air freight. They are not shipped by sea freight.
○Regarding Japanese Vehicle Inspection (Shaken) Compatibility
Please understand that the products we handle are basically designed and manufactured outside of Japan, and are not compliant with the "Japanese Vehicle Inspection System." Furthermore, we cannot provide strength calculation documents or similar paperwork for the Japanese inspection system. Therefore, all parts are sold for the purpose of "use on circuits, private property, or off-road," and installation and use are at your own risk.
○Regarding Warranty
Please check the contents of your order 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 provide returns, refunds, or replacement products for damaged, defective, or incorrect items if you contact us within 7 days of receipt. Please note 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.