HPS Performance Air Intake Kit for 2008-14 WRX & STI

Product Highlights

• Free-flowing 3” mandrel-bent aluminum intake tubing for optimized airflow and durability

• Includes a washable/reusable high-flow cotton air filter

• Cold air design relocates the filter outside the engine bay for cooler intake temps

• Dyno-proven gains of +29.5 HP and +27 lb-ft of torque

• Improves acceleration and throttle response

• Heavy-duty powder coated steel heat shield blocks radiant engine heat

• Can be converted into a short ram intake setup

• Includes high-temp reinforced silicone couplers and stainless steel T-bolt clamps

• Easy bolt-on installation using basic hand tools

• Fits 2008-2014 Subaru WRX and WRX STI 2.5L Turbo

Features & Benefits

The HPS Performance 837 Series 2-Piece Cold Air Intake Kit (Part #837-778) is designed for the 2008-2014 Subaru WRX and WRX STI 2.5L Turbo, delivering major airflow improvements and noticeable power gains. Featuring free-flowing 3-inch mandrel-bent aluminum intake tubing, this system is dyno-tested to produce an impressive +29.5 horsepower and +27 lb-ft of torque, while enhancing throttle response and acceleration.

To maximize performance, the high-flow HPS air filter is relocated outside of the engine bay to draw in cooler, denser air. A heavy-duty powder coated steel heat shield helps isolate the filter from radiant engine heat for more consistent intake temperatures. The two-piece aluminum design replaces the restrictive factory intake system with smoother tubing for improved airflow, heat dissipation, and long-term durability.

Built for reliability under aggressive driving conditions, this kit includes high-temperature reinforced silicone couplers and industrial-grade stainless steel T-bolt clamps. Best of all, it installs as a true bolt-on upgrade with no tuning required and no modifications needed.

Included in the Kit

• HPS Performance aluminum intake tubes

• Heavy-duty powder coated steel heat shield

• Washable & reusable HPS performance air filter

• 100% stainless steel T-bolt clamps

• High-temp reinforced silicone couplers

• Mounting hardware

• Digital installation instructions