With a span of 67 or 61 inches and a height of 13 inches, the GTC-300 is an adjustable wing suitable for serious business. The 3D airfoil shape of the GTC-300 allows for optimal airflow, providing an effective amount of downforce while reducing air resistance. Computational Fluid Dynamics (CFD) analysis was performed on this wing to support the validation of its aerodynamic design.
Each airfoil in the GTC series is constructed of lightweight and durable carbon fiber reinforced polymer (CFRP) composite materials. These airfoils include pre-preg carbon fiber woven sheets that achieve superior strength and light weight. All CFRP airfoils are manufactured using pre-preg composite manufacturing processes (such as high-temperature autoclaving and vacuum bagging) in high-quality billet aluminum molds.
Supporting the wing are 10 mm "aircraft-grade" 6061 billet aluminum pedestals with a flat black powder coat finish.
Before Ordering
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 there will be no additional charges beyond the total amount paid at checkout.
〇Checking Compatibility
As our entire product database is based on North American vehicles (USDM), please confirm whether parts are compatible with Japanese vehicles (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 be happy to assist you.)
Please note that if you place an order without confirming compatibility, we cannot accept returns due to incompatibility.
Additionally, please be aware that even if products are sorted by selecting the year, manufacturer, and vehicle model via the tabs on our top page, this does not guarantee that 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 when you enter your shipping address on the checkout page. In rare cases, there may be a significant discrepancy between the automatically calculated shipping cost and the actual shipping cost for large items such as body parts. In such cases, we will contact you individually via email.
Basically, all products are shipped internationally from our US warehouse. Unlike domestic shipping within Japan, international shipping takes approximately 7 to 14 days, so please allow sufficient time when ordering. If you are in a hurry, please contact us in advance to confirm delivery times. Note that all products are transported by air; they are never shipped by sea freight.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
Please be aware that all products we handle are designed and manufactured outside of Japan. They are not compliant with the "Japanese Vehicle Inspection System," and we cannot provide strength study documents or similar for Japanese vehicle inspection purposes. Therefore, all parts are sold for the purpose of "use on circuits, private land, or off-public roads," and installation and use are at your own risk.
○ Regarding Warranty
Please check the contents immediately upon arrival. As 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 items different from what was ordered if you contact us within 7 days of receipt. Furthermore, for products sold through our company, all warranty-related support will be handled "exclusively through us." Please note that we do not provide support through other companies or agents located within Japan.