Subaru OEM Exhaust Manifold LH (02-14 WRX) | 14023AA020

Overview

The Genuine Subaru OEM Left-Hand Exhaust Manifold (Part #14023AA020) is a factory-original replacement component engineered specifically for the 2002–2014 Subaru WRX. Designed to deliver precise fitment and optimal exhaust flow, this OEM manifold ensures your WRX performs exactly as Subaru intended — with no modifications or adaptation required. If you're restoring factory performance or replacing a cracked or damaged manifold, this is the correct, guaranteed-fit part.

Key Features & Benefits

• Genuine Subaru OEM Quality — Manufactured to the exact same specifications as the original factory part, ensuring reliability and longevity you can count on.
• Perfect OEM Fitment — Engineered specifically for the 2002–2014 Subaru WRX EJ-series engine; bolts directly in place with zero modification required.
• Optimized Exhaust Flow — Factory-designed porting and runner geometry maintain proper exhaust scavenging and turbocharger spool characteristics for the WRX platform.
• High-Temperature Durability — Cast from materials rated for the extreme thermal cycles of a turbocharged boxer engine, resisting warping and cracking over time.
• Factory Warranty Coverage — As a Genuine Subaru part, this manifold is backed by Subaru's OEM parts warranty when purchased from an authorized Subaru dealer.
• Left-Hand (LH) Configuration — Correct driver-side manifold for the horizontally-opposed EJ engine layout used in WRX models across this generation.

What's Included

• 1x Genuine Subaru OEM Left-Hand Exhaust Manifold (Part #14023AA020)

Specifications

Fitment & Compatibility

This exhaust manifold is designed for the following Subaru vehicles:

Always verify your specific VIN and trim level before ordering. If you are unsure whether this is the correct manifold for your vehicle, please contact us with your VIN for confirmation.

Installation

This exhaust manifold is a direct OEM replacement and bolts into the factory location without modification. However, exhaust manifold replacement on a turbocharged WRX involves working in close proximity to the turbocharger, downpipe, and heat shielding. Professional installation by a qualified Subaru technician is strongly recommended. Always replace manifold gaskets and hardware as needed during installation to ensure a proper seal and prevent exhaust leaks.