HPS Performance 837-573R Cold Air Intake Kit

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.

Performance Gains

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.

Construction and Design

• Material: The intake features lightweight mandrel-bent aluminum alloy tubing, which replaces the restrictive factory air box. This design enhances airflow and provides excellent heat dissipation.
• Heat Shield: A heavy-duty powder-coated steel heat shield is included to block hot air from the engine compartment, ensuring optimal cooling for the intake air.
• Hoses and Clamps: The kit includes HPS's signature race-proven reinforced silicone hoses and industrial-grade 100% stainless steel T-bolt clamps, providing reliability even under extreme driving conditions.
• Air Filter: The high-flow air filter is washable and reusable, designed to deliver excellent filtration without compromising airflow.

Installation Details

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).

Specifications

• Product Type: Performance Air Intake
• Series: 837 Series
• Color: Red
• Vehicle Type: Sport Compact
• Tubing Material: Aluminum
• Air Filter Type: Cone
• Replacement Air Filter SKU: HPS-4275

Fitment

• Subaru WRX STI 2.5L Turbo 2015-2021
• Subaru WRX 2.5L Turbo 2015-2021

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.