Key Features
Dyno-proven performance gains refined by HPS Performance – increases of +11 whp and +9.9 ft/lbs of torque, with improved throttle response. No tuning required after installation.
Lightweight 2-3/4 inch mandrel-bent aluminum alloy piping replaces the restrictive stock airbox, optimizing airflow with superior heat dissipation and long-lasting durability.
Features HPS Performance race-proven reinforced silicone hoses, industrial-grade 100% stainless steel T-bolt clamps, and a washable/reusable performance air filter.
Can be converted to a short ram intake. The included installation manual provides clear photos and instructions to guide the installer through the entire process.
Easy bolt-on installation with no modifications required.
The all-new HPS Performance 837 Series Cold Air Intake Kit (Red, Part Number 837-122R) for the 2004-2008 Acura TSX 2.4L offers a free-flowing 2-3/4 inch mandrel-bent aluminum induction system. The HPS performance air filter is relocated outside of the engine bay to maintain the lowest possible intake temperatures. It can be converted to a short ram intake. Compared to conventional intake setups, the HPS Performance 837 Series Cold Air Intake Kit delivers cooler, oxygen-rich air, causing a more intense explosion in the vehicle's combustion chamber and providing dyno-proven performance gains - an increase of +11 whp and +9.9 ft/lbs of torque while maintaining a safe air-fuel ratio and improving throttle response. The included installation manual contains clear photos and instructions to guide the installer through the entire process. This kit does not require tuning and will not trigger a CEL light. No modifications are necessary during installation. HPS lightweight mandrel-bent aluminum alloy tubing replaces the restrictive stock airbox, optimizing airflow with superior heat dissipation and long-lasting durability. The HPS Performance 837 Series Cold Air Intake Kit features race-proven reinforced silicone hoses and industrial-grade 100% stainless steel T-bolt clamps, ensuring reliability even in the harshest driving conditions. The all-new HPS performance air filter is designed with performance in mind, providing superior filtration without sacrificing airflow. All HPS performance air filters are manufactured in the USA.
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 will be no additional charges beyond the total amount paid at checkout.
〇Confirmation of Compatibility
All product databases are based on North American vehicles (USDM), so please check the compatibility with Japanese vehicles (JDM) before ordering. (If you are unsure whether the listed product is compatible with your vehicle, please feel free to contact us. Our support team will investigate for you.)
If you place an order without confirming compatibility, we cannot accept returns due to incompatibility.
Please note that even if items are sorted by selecting the year, manufacturer, and vehicle model using the tabs on our top page, it 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 automatically calculated when you enter your shipping address on the checkout page. For large items such as body parts, there are rare cases where the automatically calculated shipping cost differs significantly from the actual shipping cost. In such cases, we will contact you individually via email.
In principle, 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 enough time to spare. If you are in a hurry, please contact us in advance to check the delivery time. Note that all products are transported by air; they are not shipped by sea.
○ Regarding Japanese Vehicle Inspection Compatibility
All products we handle are basically designed and manufactured outside of Japan. Please note 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 check the contents immediately upon receipt of your order. Since all products are shipped internationally from outside Japan, there may be shipping damage to the packaging box or the product itself. Please understand that we will only handle returns, refunds, or exchanges for products with shipping damage, defective items, or items different from your order if you contact us within 7 days of receipt. Furthermore, for products sold through us, we will provide warranty support "only through us." Please note that we do not provide support through other companies or distributors located within Japan.