Key Features
Outside Diameter: 2 - 2-1/4 inches (51mm - 57mm). Length: 4 inches.
Material: 16-gauge 6061-T6 aluminum. Wall thickness: 0.065 inches (1.65 mm).
Inside Diameter: 1-7/8 - 2-1/8 inches (48 mm - 54 mm).
Commonly used in industrial, automotive, marine, and aerospace industries. Perfect for custom DIY fabrication projects and welding.
Create high-performance air intake kits, cooling radiator and heater systems, turbo intercooler piping, and blow-off valve tubing setups.
Outside Diameter: 2" - 2-1/4". Length: 4 inches. HPS 6061 aluminum 16-gauge step-up transition joiners are commonly used in industrial, automotive, marine, and aerospace industries. They are ideal for custom fabrication projects such as DIY welding, high-performance air intake kits, cooling radiator and heater systems, and turbo intercooler piping and blow-off valve tubing setups.
Before You Order
〇 Regarding Import Consumption Tax
At Shaft-ya Shopping Site, we cover 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 Fitment
All product databases are based on North American vehicles (USDM). Please confirm whether or not they 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 be happy to check for you.)
If you place an order without confirming fitment, 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 payment. Shipping estimates are calculated automatically when 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 cost and the actual cost. In such cases, we will contact you individually via email.
In principle, all products are shipped internationally from our U.S. warehouse. Unlike domestic shipping in Japan, international shipping takes approximately 7 to 14 days, so please allow ample 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 not shipped by sea.
○ 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 are unable to provide strength calculation documents or similar paperwork for the Japanese inspection system. Therefore, all parts are sold for the purpose of "use on tracks, private property, or off-road," 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 incorrect items if you contact us within 7 days of receipt. Furthermore, for products sold through our company, all warranty-related matters will be handled "exclusively through us." Please note that we do not provide support through other companies or distributors located within Japan.