Dyno Performance Gains: 15-17 hp, 15-18 ft-lb
The GR Corolla Intake is the successor to our GR Yaris system, developed through extensive data logging of temperatures, flow rates, and dyno testing. As a turbocharged engine, heat and volume were the primary considerations in our development. This intake system was engineered to achieve maximum flow while keeping intake temperatures as low as possible. Each component is designed to provide a smooth, unrestricted path to the turbo. By ensuring a sealed system, we reduce IATs (Intake Air Temperatures), while the increased internal volume reduces pressure drop, thereby decreasing turbo pumping losses. This improves turbocharger efficiency, allows for earlier peak boost, and results in overall performance gains.
The filter itself has an outer diameter of 210mm (8.3 inches) and a filtration area exceeding 130,000mm². The patented venturi housing is designed to provide maximum internal volume for the GR Corolla, promoting laminar flow to the turbo tube.
The Eventuri Difference
The GR Corolla Eventuri system features a patented carbon fiber housing that provides an aerodynamically efficient airflow path from the filter to the turbo. It is not just a cone filter with a heat shield, but a unique design that induces a venturi effect and maintains laminar flow to reduce turbo drag. For more details on the design and mechanics of the housing, please click here.
Before You Order
〇 Regarding Import Consumption Tax
At the Shaftoya 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 primarily on North American (USDM) vehicles, so please verify whether parts will fit Japanese (JDM) vehicles before ordering. (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 investigate for you.)
If you order without confirming compatibility, we cannot accept returns due to fitment issues.
Please note that even if products are sorted using the year, manufacturer, and model tabs on our homepage, it 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 quotes are calculated automatically once you enter your delivery address on the checkout page. For large items such as body parts, there may occasionally be a significant discrepancy between the automatically calculated shipping cost and the actual cost. In such cases, we will contact you individually via email.
All products are generally shipped internationally from our US warehouse. Unlike domestic Japanese shipping, international shipping takes approximately 7 to 14 days, so please allow sufficient time for your order. If you are in a hurry, please contact us in advance to confirm delivery times. Note that all products are shipped via air freight; we do not use sea freight.
○ Regarding Japanese Vehicle Inspection (Shaken) Compliance
Our products are fundamentally designed and manufactured outside of Japan. Please be aware that they are not compliant with the "Japanese Vehicle Inspection System," and we cannot provide strength evaluation 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 use only." Installation and use are at your own risk.
○ Regarding Warranty
Please inspect the contents immediately upon arrival. As all products are shipped internationally from outside of Japan, there may be instances of shipping damage to packaging or products. We will only provide returns, refunds, or replacements for shipping-damaged items, defective products, or incorrect items if you notify us within 7 days of receipt. Please note that for products sold through our company, all warranty-related issues will be handled "exclusively through us." We do not provide support through other companies or distributors located within Japan.