Direct Fit Catalytic Converter
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MagnaFlow Direct Fit Catalytic Converter

Part No. 23405 Warranty Details  

Disclaimer: This product is not authorized to be shipped/picked-up CA.

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Designed with ease of installation in mind, MagnaFlow's direct-fit converters are the perfect compliment to your OEM exhaust system. With no welding, cutting or bending required, you can easily add one of our direct-fit converters to your vehicle when it's time to replace your original catalytic converter
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A.I.R. Tube:No
Case Material:Stainless Steel
Heat Shield Included:No
Inlet Quantity:1
Outlet Quantity:1
Overall Length:44.125 in
Substrate Material:Ceramic
Type:Direct Fit Catalytic Converter

REVIEW SNAPSHOT®

by PowerReviews
MagnaFlowDirect Fit Catalytic Converter
 
3.8

(based on 13 reviews)

Ratings Distribution

  • 5 Stars

     

    (7)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (3)

75%

of respondents would recommend this to a friend.

Pros

  • Easy to install (6)
  • Great sound (3)

Cons

No Cons

Best Uses

  • Everyday driving (8)
  • Replacement (7)
    • Reviewer Profile:
    • Auto enthusiast (7), Casual driver (6)

Most Liked Positive Review

 

2003 Impala Converter

Magnaflow offers 2 replacement catalytic converters for the 49 state emission standards Impalas, this one was half the price of the other. I couldn't find any information as to which one I needed,...Read complete review

Magnaflow offers 2 replacement catalytic converters for the 49 state emission standards Impalas, this one was half the price of the other. I couldn't find any information as to which one I needed, so I went straight to Magnaflow. The more expensive one (part number 5xxxx)is made with more catalyst materials and is "recommended for high mileage" cars. This is built to be a direct replacement for the OE converter, and it looks to be a high quality part. But... The output flange on the one I purchased was welded slightly crooked (but it was a very good weld), so a little grinding was required to get the exhaust to connect and seal. I'd also recommend you replace the bolts on the output side, it's much easier to throw out the rusted pair than try and take them off without stripping the nuts.

VS

Most Liked Negative Review

 

DO NOT BUY THIS - TOO MUCH TROUBLE!!

The converter didn't conform to the OE design, the O2 sensor mounted on top of outlet pipe on OE, Magnaflow chose to use strait outlet pipe requiring O2 sensor to be mounted on the...Read complete review

The converter didn't conform to the OE design, the O2 sensor mounted on top of outlet pipe on OE, Magnaflow chose to use strait outlet pipe requiring O2 sensor to be mounted on the side, this required the floor and heat shield to be modified before installation so that it would not hit them.Flanges not OE, inferior quality.It started setting code P0420 (catalyst system efficiency below threshold) in less than a year and about 10,000 miles.[...]

Reviewed by 13 customers

Displaying reviews 1-10

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5.0

Good product, fit well

By 

from South Korea

About Me Auto Enthusiast, Casual Driver

See all my reviews

Ask me a question

3 or more reviews submitted

Pros

  • Durable

Cons

    Best Uses

    • Everyday Driving
    • Replacement

    Comments about MagnaFlow Direct Fit Catalytic Converter:

    This product fit perfectly and sounds great. Even though it came with gaskets, I ordered some different ones as they were a better quality. it has a stainless steel construction so it should last a very long time. Shipping was also fast, I received it in about 8 days oversea. The product was packaged well and I received it with no damage. Advance Auto Parts is one of the few companies that will send to a APO address. I also liked where the oxygen sensor bung is placed on the side instead of on top of the pipe.

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    (1 of 2 customers found this review helpful)

     
    5.0

    works great

    By 

    from Lisbon Ohio

    About Me Casual Driver

    Verified Buyer

    Pros

      Cons

        Best Uses

        • Replacement

        Comments about MagnaFlow Direct Fit Catalytic Converter:

        Hey it works great

        Comment on this reviewHelp Icon

        (1 of 2 customers found this review helpful)

         
        5.0

        I wll recomend this store to my friends

        By 

        from Hartford ,Ct

        About Me Auto Enthusiast, Casual Driver, Competitive Driver

        Verified Buyer

        Pros

        • Adds Style
        • Easy To Install
        • Great Sound
        • Increases Power
        • Lightweight

        Cons

          Best Uses

          • Everyday Driving
          • Performance Driving
          • Replacement
          • Restoration

          Comments about MagnaFlow Direct Fit Catalytic Converter:

          This is the parfect part for my veichle

          Comment on this reviewHelp Icon

          (1 of 2 customers found this review helpful)

           
          1.0

          Don't buy it

          By 

          from Saint Louis,MO

          About Me Mechanic

          Pros

            Cons

            • Too Noisy

            Best Uses

            • Replacement

            Comments about MagnaFlow Direct Fit Catalytic Converter:

            It is not easy to find product that would replace original.This product is too loud and it started giving codes after couple of months. Unbelievable loud for a family vehicle. Very cheap design

            Comment on this reviewHelp Icon

            (1 of 2 customers found this review helpful)

             
            4.0

            2003 Impala Converter

            By 

            from Iowa

            About Me Auto Enthusiast

            See all my reviews

            Verified Buyer
            Helpful Reviewer

            Pros

            • Direct replacement

            Cons

            • Difficult To Install

            Best Uses

            • Everyday Driving

            Comments about MagnaFlow Direct Fit Catalytic Converter:

            Magnaflow offers 2 replacement catalytic converters for the 49 state emission standards Impalas, this one was half the price of the other. I couldn't find any information as to which one I needed, so I went straight to Magnaflow. The more expensive one (part number 5xxxx)is made with more catalyst materials and is "recommended for high mileage" cars. This is built to be a direct replacement for the OE converter, and it looks to be a high quality part. But... The output flange on the one I purchased was welded slightly crooked (but it was a very good weld), so a little grinding was required to get the exhaust to connect and seal. I'd also recommend you replace the bolts on the output side, it's much easier to throw out the rusted pair than try and take them off without stripping the nuts.

            Comment on this reviewHelp Icon

            (1 of 2 customers found this review helpful)

             
            5.0

            I would buy this again

            By 

            from Holyoke, Co.

            About Me Casual Driver

            Verified Buyer

            Pros

            • Easy To Install

            Cons

            • Too Noisy

            Best Uses

            • Everyday Driving
            • Replacement

            Comments about MagnaFlow Direct Fit Catalytic Converter:

            Product meet all my needs. Was very easy to install, and made my car run better. I would recomend this product to anyone.

            Comment on this reviewHelp Icon

            (1 of 2 customers found this review helpful)

             
            5.0

            Converter

            Comments about MagnaFlow Direct Fit Catalytic Converter:

            Fit without a problem.

            Comment on this reviewHelp Icon

            (1 of 2 customers found this review helpful)

             
            5.0

            So Far, So Good

            By 

            from Loyal, WI

            About Me Auto Enthusiast

            See all my reviews

            Ask me a question

            Verified Buyer
            3 or more reviews submitted

            Pros

            • Easy To Install
            • Great Sound

            Cons

              Best Uses

              • Everyday Driving
              • Replacement
              • Restoration

              Comments about MagnaFlow Direct Fit Catalytic Converter:

              The cat was almost totally plugged and the car had no power, what so-ever. We did end up using this cat as a direct replacement with no issues. The car sounds factory, if not a bit louder (only noticable outside the car.) It's only been on for about 2 weeks, but so far is performing perfectly!

              Comment on this reviewHelp Icon

              (1 of 2 customers found this review helpful)

               
              4.0

              Would buy again

              By 

              from N.E. Indiana

              About Me Auto Enthusiast, Casual Driver

              Verified Buyer

              Pros

              • Easy To Install
              • Pefect fit on my 02 regal

              Cons

                Best Uses

                • Everyday Driving

                Comments about MagnaFlow Direct Fit Catalytic Converter:

                This catalitic converter fit pefect on my 2002 3.8L Buick Regal. Original cat had 130k miles on it and was plugged up. I believe the 01-02 3.8L vehicles had some issues with the cat. I only have a few miles with the new cat so I can't comment on durability. It seems to be made well and I prefer the placement of the O2 sensor. It is located on the side of the pipe and is much easier to get to if you need to replace it, no modifications were needed. My box came with the gaskets needed but would suggest buying different ones as the ones that came in the box were a little cheesy. You can judge for yourself, I'm sure they would work but I bought different ones.

                Comment on this reviewHelp Icon

                (1 of 1 customers found this review helpful)

                 
                4.0

                proper fit

                By 

                from hanover md

                About Me Auto Enthusiast, Truck Enthusiast

                Verified Buyer

                Pros

                • Easy To Install

                Cons

                  Best Uses

                  • Everyday Driving

                  Comments about MagnaFlow Direct Fit Catalytic Converter:

                  Easy to install Passed emissions fine

                  Comment on this reviewHelp Icon

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                  Do you have questions about this product?

                   

                  Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

                  2 Questions | 2 Answers
                  Displaying questions 1-2
                  • Q:

                    how well does this product compare to factory part
                    Asked on 12/8/2012 by steve

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Yes, the MagnaFlow Direct Fit Catalytic Converter - Part No. 23405 meets the OE specifications. This part comes with a stainless steel construction and EPA approved warranty. It is also OBDI and OBDII EPA Compliant. So it meets all the specifications of a factory part. For any further assistance please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto store and one of our representatives will gladly assist you with any questions or concerns you may have.

                      Answered on 12/9/2012 by John the Car-Doc from AAP
                  • Q:

                    Does this converter come with gaskets and bolts?
                    Asked on 10/22/2012 by Robert

                    1 answer

                    • CUSTOMER CARE

                      A:

                      No, this part MagnaFlow Direct Fit Catalytic Converter, Part No. 23405 does not include gaskets and bolts.
                      For compatibility of this part with your vehicle, please provide your vehicle make, model and engine specification.
                      For any further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and our representatives would be more than happy to assist you.

                      Answered on 10/23/2012 by Aaron from AAP
                  Displaying questions 1-2

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