Catalytic Converter for Subaru Forester Outback Legacy Impreza 2.0L 2.5L EPA | BDFHYK

Direct-Fit Exhaust Manifold Catalytic Converter Replacement for Subaru XV Crosstrek, Outback, Legacy, Impreza & Forester 2.0L / 2.5L H4

Designed for Subaru vehicles equipped with 2.0L and 2.5L H4 engines, including Crosstrek, Outback, Legacy, Impreza, and Forester applications, this direct-fit exhaust manifold catalytic converter helps restore proper exhaust flow, emissions performance, and engine efficiency. Built with a durable stainless steel housing and OEM-matched mounting points for reliable fitment and long service life.

Vehicle Compatibility

• Compatible With: Subaru XV Crosstrek 2013-2015, 2016
• Compatible With: Subaru Outback 2013-2014
• Compatible With: Subaru Legacy 2013-2014
• Compatible With: Subaru Impreza 2013-2016
• Compatible With: Subaru Forester 2011-2016
• Engine: H4 2.0L / 2.5L
• Reference Numbers: 16689, 17367, 44620AC580, 44620AC581, 44620AC620, 44620AC621, 44620AC770, 44620AC780, 44620AD160, 44620AD16A, 44620AD170, 44620AD17A

Key Specifications

Complete Installation Package

This catalytic converter assembly is designed to replace the original factory unit and restore proper exhaust system performance across multiple Subaru models. Please confirm vehicle year, engine size, and OE reference number before purchase.

Bolt-On Direct-Fit Design

Engineered for OEM-style mounting points to ensure a straightforward installation process. The direct-fit design eliminates the need for cutting, welding, or modification, helping reduce installation time and effort.

Integrated O2 Sensor Ports

Factory-style oxygen sensor ports ensure proper integration with the vehicle’s emissions monitoring system, supporting accurate air-fuel ratio feedback and stable engine operation.

Package Includes

• 1 × Front Exhaust Manifold Catalytic Converter Assembly
• Pre-installed mounting flanges
• Integrated O2 sensor port locations

Note: Mild surface oxidation may appear on non-stainless flanges due to storage or shipping. This does not affect performance, fitment, or durability.

Common Signs of Catalytic Converter Failure

• Check Engine Light (CEL) illuminated
• Failed emissions inspection
• Reduced engine power or sluggish acceleration
• Increased fuel consumption
• Sulfur or rotten egg odor from exhaust
• Rattling noise from inside the converter
• Engine hesitation or restricted exhaust flow