The HPS Performance 837-573R Cold Air Intake Kit is engineered for the 2015-2021 Subaru WRX and WRX STI models equipped with the 2.5L Turbo engine. This kit relocates the HPS Performance Air Filter outside of the engine compartment, ensuring that your engine receives the coolest air possible, which is crucial for maximizing performance.
With the HPS 837-573R, you can expect significant improvements in power and responsiveness. This cold air intake system is dyno-tested, yielding gains of +19.4 Whp and +20.5 Ft-lbs of torque. The enhanced airflow translates into a more efficient combustion process, optimizing your vehicle's overall performance while maintaining a safe air-fuel ratio.
Installation of the HPS 837-573R is straightforward with no modifications required. The kit comes with a detailed installation manual featuring clear images and step-by-step instructions, making it accessible for both novice and experienced installers. An air straightener is also included to minimize the chances of triggering the Check Engine Light (CEL).
The HPS Performance 837-573R Cold Air Intake Kit is a solid upgrade for those looking to enhance the performance of their Subaru WRX or WRX STI without the need for tuning. With its robust construction and proven gains, this intake system is a reliable choice for performance-minded drivers.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
2015-2021 Subaru STI |
STI | 2015-2021 |
|
2015-2021 Subaru WRX |
WRX | 2015-2021 |

HPS Performance Products is a leading manufacturer of aftermarket performance parts, fabrication components, and silicone hoses. HPS serves a number of different industries, including automotive, aerospace, construction, commercial truck/bus, marine, agricultural, turbo diesel, off-road, performance racing, general manufacturing, and water treatment. The company’s ability to fabricate custom-shaped multiply silicone hoses make it ideal for a wide range of applications. The multiply carcass makes HPS’ hose perfect for coolant and turbocharged pressure applications while the fluoro-silicone-lined hoses make it safe to be used with petroleum-based oil and fuel.
HPS Performance Products is committed to meeting its original goals of producing quality parts at competitive pricing and providing customer service responses in a personal, timely manner. All HPS products have been thoroughly tested on the dyno and track, and meet or exceed SAEJ20 standards. The HPS staff has solid expertise in the silicone hose department, which allows them to deliver standard size silicone hoses with same-day shipping. HPS’ highly skilled and knowledgeable team, paired with the latest state-of-the-art technology, ensures the brand’s continued success and reputation as a premier manufacturer in the industry
HPS Quality Silicone HosesHPS Performance Products specializes in and is best known for manufacturing multi-application silicone hoses. HPS silicone hoses are carefully crafted from only the highest quality 4-ply reinforced high-temperature material. The hoses are available in the following varieties: straight coupler, 1-foot tube, 3-foot coolant tube, charge air cooler hose (CAC), hump coupler, reducer couple her, 45-degree elbow coupler and reducer, and 90-degree elbow coupler and reducer.
HPS Performance Products also carries performance silicone vacuum hoses and silicone heater hoses. You can choose silicone hoses in both standard inch and hard-to-find metric sizes. Stainless steel T-bolt clamps are available to match with the silicone hoses as well. In order to meet the high demand and shorten the turnaround time for its silicone hoses, up to 90 percent of the product is already in stock and ready to ship or pick up from HPS authorized dealers like Vivid Racing.
HPS Performance Products at Vivid RacingVivid Racing carries a comprehensive lineup of HPS Performance Products for a number of different makes, models, and applications. Our extensive inventory of HPS parts includes aluminum tubing, cold air and short ram intakes, vacuum lines, hoses and clamps, intercooler pipes, radiator caps, and much more! If you have any questions regarding the items listed above or have fitment concerns, please contact our expert sales team at (480) 966-3040. We are here to help you through the entire purchase process and make it a pleasant experience.