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The MagnaFlow OEM Grade Direct Fit Catalytic Converter 21-277 is a bolt-on replacement for the factory converter on 2006-2008 Subaru Forester and 2006-2007 Impreza 2.5L models. It uses mandrel-bent stainless steel tubing and a spun body with a single laser fusion weld to resist leaks and corrosion. It meets EPA Federal emissions standards and interchanges with OE part 44620AA750. Buyers praise its fit and easy installation, though some report short lifespan and check engine light issues.
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Lowest price we've seen: $219.99 on Nov 14 at AutoZone. Tracked across 13 stores since Nov 14.
Reviewers give it a 4.7 out of 5, often noting easy installation and good fit. A few mention premature failure and persistent check engine lights.
This is a direct-fit catalytic converter, part number 21-277, for the 2006-2008 Subaru Forester and 2006-2007 Subaru Impreza. It is built to fit and function like the original equipment, and it interchanges with OE part 44620AA750. It is designed to meet or exceed Federal emissions requirements set by the EPA, and it complies with legal standards for OBDII Federally registered vehicles with California or Federal/EPA emission systems.
The converter has a stainless steel body that resists corrosion, with free-flowing mandrel-bent tubing. It copies the OE spun body design, and a single laser fusion weld reduces the chance of a leak. The compact, low-mass design allows for greater thermal efficiency.
It installs with the proper tools and needs no cutting or welding. Gaskets are included to help seal the connection and prevent exhaust leaks.
