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With spans of 67 or 61 inches and a height of 13 inches, the GTC-300 is an adjustable wing that means serious business. The 3D airfoil shape of the GTC-300 allows for optimal airflow that delivers an effective amount of downforce while reducing drag. Computational Fluid Dynamics (CFD) analysis was performed on this wing to support aerodynamic design validation.
Each airfoil in the GTC series is constructed from lightweight and durable carbon fiber reinforced polymer (CFRP) composite materials. These airfoils include pre-impregnated carbon fiber woven sheets for superior strength and weight reduction. All CFRP airfoils are manufactured using pre-impregnated composite manufacturing processes (such as high-temperature autoclaving and vacuum bagging) in high-quality aluminum billet molds.
Supporting the wing are 10mm "aircraft-grade" 6061 billet aluminum pedestals with a flat black powder coat finish.
Special Note: The mounting base covers the holes of the factory spoiler/wing. Span>
Before Placing Your Order
〇 Regarding Import Consumption Tax
At Shaftoya 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 Compatibility Confirmation
All product databases are based on North American vehicles (USDM). Please confirm whether the product can be installed on Japanese vehicles (JDM) before placing your order. (If you are unsure whether 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 products are sorted by selecting the year, manufacturer, and vehicle model using the tabs on our top page, this 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 estimates are calculated automatically once you enter your shipping address on the checkout page. For large items such as body parts, there may occasionally be a significant discrepancy between the automatically calculated shipping amount and the actual shipping cost. In such cases, we will contact you individually by email.
All products are generally shipped internationally from our US warehouse. Unlike domestic shipping in Japan, international shipping takes approximately 7 to 14 days, so please allow sufficient time when ordering. If you are in a hurry, please inquire about the delivery date in advance. Note that all products are transported by air freight; they are never shipped by sea.
○ Regarding Compliance with Japanese Vehicle Inspection (Shaken)
The products we handle are fundamentally designed and manufactured outside of Japan. Please understand that they are not compliant with "Japanese Vehicle Inspection (Shaken) standards," and we cannot provide strength evaluation documents or similar paperwork for these systems. Therefore, all parts are sold for the purpose of "use on circuits, private land, or off-road," 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 shipping damage to the packaging or the product itself. Please understand that we will only provide returns, refunds, or replacement exchanges for items with shipping damage, defective products, or products that differ from the order if you contact us within 7 days of receipt. Furthermore, regarding products sold through us, all warranty-related support will be handled "exclusively through us." Please note that we do not handle matters through other companies or distributors located within Japan.