Key Features
The only kit that covers all coolant, heater, and auxiliary hoses (15 total). Made with the correct bends and curves to ensure a perfect fit.
Prevents and fixes coolant leakage and engine overheating problems caused by cracked, damaged, or collapsed OEM rubber coolant hoses. Made with the correct bends and curves to ensure a perfect fit.
Race-proven design with durable quality, engineered for extremely high-temperature applications (up to 350°F) and long-term exposure to under-hood and coolant heat.
Includes industrial-grade stainless steel embossed hose clamps that do not cut into the silicone hose.
100% satisfaction guarantee. HPS Performance is available to help troubleshoot all technical issues or questions.
HPS blue high-temperature 3-ply reinforced silicone coolant hose kit (part number 57-1815-BLUE) is a replacement for 2006-2007 Subaru Impreza WRX STi 2.5L Turbo, including the stock OEM rubber upper and lower radiator hoses, heater hoses, and auxiliary hoses with premium-grade high-heat resistant material that meets or exceeds OE specifications (maximum temperature rating: 350°F). Compared to universal hoses from local auto parts stores, HPS silicone radiator and heater hose kits feature all the correct bends and curves to ensure a perfect fit. Includes 100% stainless steel non-perforated embossed hose clamps for easy installation. HPS silicone hoses do not cut into the silicone and help prevent coolant leaks and engine overheating. Resolves issues caused by cracked, damaged, or collapsed OEM rubber coolant hoses. HPS silicone hoses excel in extreme ambient and radiant temperature conditions, capable of withstanding the harsh high-temperature and high-pressure operating conditions of the engine, maintaining peak efficiency during daily driving or racing competitions. HPS silicone hose kits come with a limited lifetime warranty on HPS Performance products.
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 are no additional charges beyond the total amount paid at checkout.
〇Checking Compatibility
Our entire product database is based on North American vehicles (USDM), so please verify compatibility with 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 an order is placed 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. There may be confusing expressions, so please contact us before ordering if you have any questions.
○ Regarding Shipping
Shipping costs are paid at the time of settlement. An estimate for shipping costs will be automatically calculated once you enter your shipping address on the checkout page. For large items such as body parts, the automatically calculated shipping cost may occasionally differ significantly from the actual cost. In such cases, we will contact you individually via 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 order with plenty of time. If you are in a hurry, please contact us in advance to confirm the delivery date. Note that all products are transported by air freight. They will not be shipped by sea freight.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
The products we handle are basically all designed and manufactured outside of Japan. Please understand that they do not conform to the "Japanese Vehicle Inspection System," and 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 inspect the contents immediately upon arrival of your order. Since all products are shipped internationally from outside Japan, there may be shipping damage to the packing box or the product itself. Please understand that we will only provide returns, refunds, or replacement exchanges if you contact us within 7 days of receipt regarding items with shipping damage, defective products, or incorrect items received. Please note that for products sold through us, warranty-related support will be handled "only through us." We do not provide support through other companies or distributors located within Japan.