Key Features
Dyno-proven performance gains with HPS fine-tuning, delivering +8.9 Whp horsepower, +7.1 ft/lbs of torque, and improved throttle response.
No tuning is required after installation.
Lightweight mandrel-bent aluminum alloy piping replaces the restrictive factory airbox to optimize airflow.
Features HPS’s signature race-proven reinforced silicone hoses and industrial-grade 100% stainless steel T-bolt clamps. The HPS Performance high-flow air filter is washable and reusable.
The included installation manual contains clear photos and instructions to guide the installer through the entire process.
Includes HPS silicone coolant reroute hose and air straightener.
Built for performance and show, the HPS Red Cold Air Intake Kit for the 2006–2011 Honda Civic Si 2.0L relocates the HPS Performance air filter outside the engine bay to provide the coldest possible inlet air temperatures. Compared to traditional short-ram air intakes, the HPS Long-Ram Cold Air Intake delivers cooler, oxygen-rich air, resulting in a more intense explosion in the vehicle's combustion chamber, dyno-proven performance gains of +8.9 Whp horsepower and +7.1 ft/lbs of torque, and improved throttle response. The included installation manual contains clear photos and instructions to guide the installer through the entire process. An HPS silicone coolant reroute hose is included to prevent the intake pipe from rubbing against the factory coolant hose. The kit also includes an air straightener to minimize the possibility of a CEL light; no tuning or modifications are required, though the front bumper must be removed for installation. The HPS lightweight mandrel-bent aluminum alloy tubing replaces the restrictive factory airbox, optimizing airflow with superior heat dissipation and long-term durability. The HPS cold air intake system features HPS’s signature race-proven reinforced silicone hoses and industrial-grade 100% stainless steel T-bolt clamps to ensure reliability under the most demanding driving conditions. The all-new HPS Performance air filter is manufactured in the USA and designed with performance in mind, providing superior filtration without sacrificing airflow. It is washable and reusable. Not CARB compliant. Vehicle Application: 2006–2011 Honda Civic Si 2.0L.
Before You Order
〇 Regarding Import Consumption Tax
At the Shafutoya 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Compatibility Check
Our entire product database is based on North American vehicles (USDM). Please check whether or not the product can be installed on a Japanese-market vehicle (JDM) before placing your order. (If you are unsure if a listed product is compatible with your vehicle, please feel free to contact us. Our support team will be happy to look into it for you.)
If you place an order 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 on the tabs of 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 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 amount automatically calculated. In such cases, we will contact you individually via email.
In principle, all products are shipped internationally from our US warehouse. Unlike domestic Japanese shipping, international delivery takes approximately 7 to 14 days, so please allow plenty of 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
All products we handle are designed and manufactured outside of Japan. Please note that they are not compliant with the "Japanese Vehicle Inspection (Shaken) system," and we are unable to provide strength calculation documents or similar paperwork for these systems. Therefore, all parts are sold for the purpose of "use on circuits, private land, 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, packaging boxes and products may sustain shipping damage. We only provide returns, refunds, or replacements for products with shipping damage, defective goods, or incorrect items if you contact us within 7 days of receipt. Please understand that for products sold through us, warranty support will be handled "exclusively through us." Please note that we do not handle support through other companies or distributors located within Japan.