Key Features
HPS-tuned performance provides dyno-proven gains of +19.4 Whp, +20.5 lb-ft of torque, and improved throttle response.
No re-tuning required after installation.
Lightweight mandrel-bent aluminum alloy piping replaces the restrictive stock airbox to optimize airflow. Durable heat shield blocks hot air from the engine for maximum cooling effect.
Features HPS signature race-proven reinforced silicone hoses and industrial-grade 100% stainless steel T-bolt clamps. HPS Performance high-flow air filter is washable and reusable.
Included installation manual provides clear photos and steps to guide the installer through the process. Air straightener included to minimize the risk of a CEL light.
Easy bolt-on installation; no modifications required.
Built for performance and show, the HPS Polished Cold Air Intake Kit for 2015-2016 Subaru Impreza WRX STI 2.5L Turbo relocates the HPS Performance air filter outside the engine bay to deliver the lowest possible intake temperatures. Compared to conventional short-ram intakes, the HPS long-ram cold air intake delivers colder air with more oxygen, creating a stronger explosion in the vehicle's combustion chamber, resulting in dyno-proven performance gains of +19.4 Whp and +20.5 lb-ft of torque while improving throttle response and maintaining a safe air-fuel ratio. A heavy-duty powder-coated steel heat shield blocks hot air from the engine bay for maximum cooling. Included installation instructions guide you through the entire process. No tuning or modifications required. The included air straightener minimizes the occurrence of a CEL light. HPS lightweight mandrel-bent aluminum alloy tubing replaces the restrictive stock airbox to optimize airflow with superior heat dissipation and long-lasting durability. The HPS cold air intake system features HPS signature race-proven reinforced silicone hoses and industrial-grade 100% stainless steel T-bolt clamps, ensuring reliability in the toughest driving conditions. The all-new HPS Performance air filter is made in the USA and designed with performance in mind, offering superior filtration without sacrificing airflow. Washable and reusable. Not CARB compliant. Vehicle Application: 2015-2016 Subaru Impreza WRX STI 2.5L Turbo.
Before Ordering
〇 About Import Consumption Tax
At 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 Checking Compatibility
Our product database is primarily based on North American vehicles (USDM). Please confirm compatibility with Japanese vehicles (JDM) before placing your order. (If you are unsure if a listed product fits your vehicle, please feel free to contact us. Our support team will be happy to check for you.)
If you order without confirming compatibility, we cannot accept returns due to incompatibility.
Please note that even if items are sorted by year, make, and model using the tabs on our homepage, it does not necessarily guarantee a direct fit on Japanese models without modification.
All products have been translated into Japanese using translation software. Due to potential confusing phrasing, please contact us before ordering if you have any questions.
○ Regarding Shipping
Shipping costs are paid at the time of checkout. Shipping estimates are automatically calculated when you enter your shipping address on the checkout page. For large items such as body parts, the actual shipping cost may occasionally differ significantly from the automated calculation. In such cases, we will contact you individually via email.
All products are generally shipped internationally from our warehouse in the United States. Unlike domestic shipping in Japan, international shipping takes approximately 7–14 days, so please allow ample time for delivery. If you are in a hurry, please contact us in advance to confirm delivery times. Note that all items are transported via air freight; they are never shipped via sea freight.
○ Regarding Japanese Vehicle Inspection (Shaken) Compatibility
The products we carry are generally designed and manufactured outside of Japan. Please note that they are not compliant with the "Japanese Vehicle Inspection System," and we cannot provide strength calculation documents or similar paperwork for these requirements. Therefore, all parts are sold for "circuit, private property, or off-road use only," and installation and usage are at your own risk.
○ Regarding Warranty
Please inspect the contents immediately upon arrival. As all products are shipped internationally from outside Japan, there is a possibility of shipping damage to the packaging or the product itself. We will provide returns, refunds, or replacement items only if you contact us within 7 days of receipt regarding products that arrived damaged, defective, or incorrect. Please understand that for products sold through us, we will provide warranty support "exclusively through our company." We do not provide support through other companies or distributors located within Japan.