Subaru WRX STI Catalytic Converters

Your One-Stop Shop For Trusted Subaru WRX STI Catalytic Converters

If you’re in search of Subaru WRX STI Catalytic Converters aftermarket or OEM parts, consider your search over! Advance Auto Parts carries 3 Catalytic Converters from top brands with prices ranging from $781.99 to $966.99.

Beyond great prices, we stock trusted brands manufacturing all types of Catalytic Converters for your Subaru WRX STI. Of the 1 OEM and aftermarket parts brands we carry, some of the most popular are Magnaflow.

And don’t forget to read customer reviews across all Catalytic Converters categories in our catalog. Buy with confidence by leveraging past customer experiences of our aftermarket and OEM parts.

At Advance Auto Parts, we don’t think top quality Catalytic Converters have to cost top dollar, and we prove it. Browse our top Subaru WRX STI Catalytic Converters below, order online to ship to your home, or head into your nearest Advance Auto Parts location to get started.

Essential Subaru WRX STI Catalytic Converters

MagnaFlow – OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.49160)

OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

from

$966.99
Keep the check engine light off with MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49160. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. Designed to fit the 2009-2013 Subaru Forester, 2005-2009 Subaru Outback, and more, this direct-fit catalytic converter also interchanges with OE parts 44102AG030 and 44102AG040, among others. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Product Features:
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency.
  • Simplifies installation with essential gaskets and hardware being included in the box.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
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MagnaFlow – OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.49161)

OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

from

$781.99
MagnaFlow OEM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 49161 helps keep the check engine light off. DIY installation is easy with the proper tools (no cutting or welding required). With features including mandrel-bent tubing to eliminate flow restrictions and stainless steel construction to resist corrosion, you can have confidence in the quality of this catalytic converter. Using state-of-the-art 3D scanning systems in the design process, the MagnaFlow metrology department ensures this new part to fit and function like the original equipment. Designed to fit the 2008-2014 Subaru Impreza and 2015-2016 Subaru WRX STI, this direct-fit catalytic converter also interchanges with OE part 44611AA250. Avoid potential exhaust leaks by using the included gaskets to get a proper seal. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with California or Federal/EPA Emission systems.

Product Features:
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency.
  • Simplifies installation with essential gaskets and hardware being included in the box.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

MagnaFlow – HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.24416)

HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter

from

$846.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 24416. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. Designed to fit the 2005-2009 Subaru Outback, 2008-2014 Subaru Impreza, and more, this direct-fit catalytic converter also interchanges with OE parts 44102AG030 and 44102AG040, among others. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.

Product Features:
  • Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency.
  • Simplifies installation with essential gaskets and hardware being included in the box.
  • Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
See More

Catalytic Converters Brands You Can Trust For Your Subaru WRX STI

1 trusted brands of Catalytic Converters line our shelves, ready to help keep your Subaru WRX STI running smooth. Below are some of the most popular brands and their top Catalytic Converters offerings:

Most Purchased Subaru WRX STI Catalytic Converters from MagnaFlow

When you buy the most frequently purchased MagnaFlow brand Catalytic Converters, you can be confident it will be the right part for your Subaru WRX STI. Here are the MagnaFlow Catalytic Converters Advanced Auto customers buy the most:
HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter
from $846.99
This product is not rated
HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter
Catalytic Converters
OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter
from $966.99
This product is not rated
OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter
Catalytic Converters
OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter
from $781.99
This product is not rated
OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter
Catalytic Converters

FAQs for Subaru WRX STI Catalytic Converters

What are the most purchased Catalytic Converters for the Subaru WRX STI?

Out of 3 Catalytic Converters for the Subaru WRX STI, the most popular in our inventory are:
HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter
from $846.99
This product is not rated
HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter
Catalytic Converters
OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter
from $966.99
This product is not rated
OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter
Catalytic Converters
OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter
from $781.99
This product is not rated
OEM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter
Catalytic Converters