SKU: 44305384303

Catalytic Converter for 2004 Subaru Forester 2.5L California Grade CARB Compliant Direct-Fit Catalytic Converter MagnaFl

Sale price$590.85 Regular price$656.50
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Shipping Estimate
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

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Description

Catalytic Converter for 2004 Subaru Forester 2.5L California Grade CARB Compliant Direct-Fit Catalytic Converter MagnaFlOverview: MagnaFlow California Grade CARB Compliant Direct Fit Catalytic Converter 451008 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

Overview:

MagnaFlow California Grade CARB Compliant Direct-Fit Catalytic Converter 451008 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. This direct-fit catalytic converter is designed specifically for the 2004 Subaru Forester and interchanges with OE parts 44139-FA010, 44139-FA161, 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 California Air Resource Board requirements, and has undergone additional testing to be certified by CARB for legal use in CA/CARB restricted states for the listed vehicles.

Interchange:

Brand  Interchange Part Number
Subaru (cars) 44139-FA010
Subaru (cars) 44139-FA161
Subaru (cars) 44139-SA010
Subaru (cars) 44139FA010
Subaru (cars) 44139FA161
Subaru (cars) 44139SA010
Subaru 44139-FA010
Subaru 44139-FA161
Subaru 44139-SA010
Subaru 44139FA010
Subaru 44139FA161
Subaru 44139SA010

Application:

Year Make Model Submodel Engine Size
2004 Subaru Forester 2.5L/H4

Specs:

Body Material Stainless Steel
Oxygen Sensor Location Pre and Post Converter
Overall Length (In.) 33.4
Substrate Material Ceramic
Air Tube Adaptable No
Inlet Attachment Bolt-On
Converter Quantity 1
Main Piping Diameter 2
Outlet Attachment Bolt-On
Finish Stainless Steel
Series California
Subtitle California / CARB Compliant
Title California Direct-Fit
Type Direct-Fit
Material Stainless Steel
Heat Shield Included Yes
Mounting Hardware Included Yes
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 44305384303

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4.5 ★★★★★
Based on 12 reviews
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Product Reviews
J
Verified Purchase
Jwick
Omaha, US
★★★★★ 5
Good product
Works as should and shows correct voltage.. double checked with several multi meters. And has been running my 4000, watt amp for almost 6 months now with no problem
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 18, 2025
C
Verified Purchase
chris
Waukegan, US
★★★★★ 5
Its ok but falls out
Works good but not connected to the unit so it falls out
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
C
Verified Purchase
Cliente de Amazon
San Leandro, US
★★★★★ 5
Excelente
Excelente
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
I
Verified Purchase
Ivan Santana
Lowell, US
★★★★★ 4
Functions. No trigger,need relay for car install
Functions,but will not turn off. No remote wire,just positive & negative. Need relay to install correctly to use on-board fuse. Or connect to remote only to view voltage use. No instructions.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 29, 2025
V
Verified Purchase
Very slowly shipping 20 days to California
Port Orchard, US
★★★★★ 5
Good quality
Good quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 14, 2025

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