Perrin Performance Cold Air Intake Neon Yellow Subaru STI 2016-2017 | PSP-INT-323NY

Overview

The Perrin Performance Cold Air Intake for the 2016–2017 Subaru WRX STI is a high-flow induction upgrade engineered to deliver cooler, denser air directly to your EJ257 engine for measurable power gains. Designed and manufactured in the USA by one of the most trusted names in Subaru performance, this cold air intake replaces the restrictive OEM airbox with a free-flowing system that improves throttle response, increases horsepower, and delivers an aggressive induction sound. Finished in Perrin's signature Neon Yellow powdercoat, this intake is as visually striking under the hood as it is functional on the road or track.

Key Features & Benefits

• Increased Airflow – Larger diameter intake tube and high-flow filter reduces restriction for improved horsepower and torque across the RPM range.
• Cooler Intake Temperatures – Cold air routing draws from outside the engine bay heat soak zone, delivering denser air for more efficient combustion.
• High-Flow Performance Filter – Reusable, oiled filter captures contaminants while flowing significantly more air than the restrictive OEM paper element.
• Neon Yellow Powdercoat Finish – Durable, corrosion-resistant finish matches Perrin's iconic color lineup and looks exceptional in any engine bay build.
• Mandrel-Bent Aluminum Tubing – Smooth, consistent inner diameter throughout the entire tube eliminates turbulence and maximizes air velocity to the turbocharger inlet.
• Improved Throttle Response – Reduced intake restriction translates to a more immediate and linear throttle feel, especially noticeable during boost transitions.
• OEM-Style Fitment – Engineered specifically for the 2016–2017 STI platform using factory mounting points for a straightforward, rattle-free installation.
• Aggressive Induction Sound – Experience the unmistakable sound of your STI's EJ257 pulling hard through the rev range — a noticeable upgrade over the muffled OEM airbox.

What's Included

• Perrin Performance aluminum intake tube (Neon Yellow powdercoat)
• High-flow performance air filter
• All necessary mounting hardware and clamps
• Detailed installation instructions

Specifications

Fitment & Compatibility

This Perrin Performance Cold Air Intake (PSP-INT-323NY) is designed exclusively for the 2016 and 2017 Subaru WRX STI equipped with the EJ257 2.5L turbocharged four-cylinder boxer engine. It is not compatible with the WRX (FA20DIT) or any other Subaru model year outside of 2016–2017 without verification. Always confirm your vehicle's year, trim, and engine code before ordering. Cross-reference OEM airbox part numbers to confirm this is the correct replacement for your build.

Is this intake CARB compliant? This product is intended for closed-course competition and off-road use only. It may not be legal for use on public roads in emissions-regulated states such as California. Please verify your local emissions regulations before installation.

Installation

The Perrin Cold Air Intake is a direct bolt-on upgrade for the 2016–2017 Subaru STI and requires no cutting, drilling, or permanent modifications. Most owners complete the installation using basic hand tools in approximately 30–60 minutes. Detailed step-by-step instructions are included. While the installation is DIY-friendly for those comfortable working in an engine bay, a professional installation is recommended if you are unfamiliar with turbo induction systems. No ECU tune is strictly required, though a professional tune is always recommended after any intake modification to maximize power gains and ensure safe air/fuel ratios under boost.