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Magnaflow Direct-Fit Catalytic Converter (87-90 4.2L Jeep Wrangler YJ)

Market Price $161.47 You Save 12% ($18.58)
Our Price

$142.89 (kit)

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  • Item J100801

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    Features & Details

    • Features a Ribbed Body
    • Has a Ceramic Coating
    • Fits 87-90 Jeep Wrangler YJ Models with a 4.2L Engine
    • 49 State Emissions Legal
    Functionality. The MagnaFlow Direct-Fit Catalytic Converter provides superior protection against direct exposure to exhaust gases, while keeping the ceramic catalyst in proper alignment.

    Design. It has a ribbed design that minimizes expansion and distortion during extreme heat conditions. The stainless steel case ensures year-round performance.

    Setup. This converter allows for easy bolt-on installation.

    Fitment. It fits 1987-1990 Jeep Wrangler YJ models with a 4.2L engine. May require the re-use or replacement of OEM gaskets. Tech Note: This catalytic converter is not legal in the state of California.

    Note: Coupon codes cannot be applied to this product.

    Fitment: 1987 1988 1989 1990 Details

    MPN# 23225

    CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

    Tech Specs
    Will it fit my Wrangler?

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    Questions & Answers (7)

    5 Top Rated Questions

    Does this require any welding? If not does it come with clamps?

    • The Magnaflow Direct-Fit Catalytic Converter will not require welding and would use clamps for the install.

    Helpful (5)

    What does this come with? Does it need any type of gaskets? Does it come with the 02 sensors?

    • This catalytic converter includes everything pictured and does not come with gaskets or O2 sesnors. No gaskets are required for installation.

    Helpful (2)

    Will it fit on my 1999 Jeep Wrangler 4 cylinder

    Does this come with the clamps?

    • The Magnaflow Direct-Fit Catalytic Converter will not include clamps.

    Helpful (0)

    Is this California Complaint?

    • This will not be California compliant.

    Helpful (0)
    Post Your Question
    2 More Questions
    Does this come with the mid pipe as well as the catalytic converter? 1 answer
    i have a header on my 4.0 idk what brand it was put in about 7 years ago will this bolt up to it or does it only work with a stock manifold? 1 answer

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    Customer Reviews (22) Write a Review

    Overall Rating 4.9

    out of 5 stars

    Installation Time:Afternoon

    • Exhaust Note 4.318182 4.3
    • Fit & Finish 4.954545 5.0
    • Bang For Your Buck 4.818182 4.8



    • 5/5

      Installation Time: Less than 1 Hour

      March 19, 2019

      Review from Magnaflow Direct-Fit Catalytic Converter (97-99 4.0L Jeep Wrangler TJ)

      Good flow

      Combined with headers and new exhaust sounds great runs great.

      BP

      Year: 1997Submodel: Wrangler

      Helpful (0)

    • 4/5

      Installation Time: Less than 1 Hour

      March 17, 2019

      Review from Magnaflow Direct-Fit Catalytic Converter (93-95 Jeep Wrangler YJ w/ 4.0L or 2.5L)

      Catalytic converters

      Good product received it in less than a week and it was a perfect fit

      Bigbob62

      Year: 1995Submodel: Wrangler

      Helpful (0)

    • 5/5

      Installation Time: Afternoon

      February 04, 2019

      Review from Magnaflow Direct-Fit Catalytic Converter (97-99 4.0L Jeep Wrangler TJ)

      97 TJ

      Direct bolt on, works just fine. A little loud for me but its been a while now so Im use to it.

      JesseJ

      Year: 1997Submodel: Wrangler

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      December 29, 2018

      Review from Magnaflow Direct-Fit Catalytic Converter (97-99 4.0L Jeep Wrangler TJ)

      Easy Install

      Great product! Install took less than 30 minutes.

      JesseS

      Year: 1999Submodel: Wrangler

      Helpful (5)

    • 5/5

      Installation Time: Afternoon

      October 12, 2018

      Review from Magnaflow Direct-Fit Catalytic Converter (97-99 4.0L Jeep Wrangler TJ)

      Great product

      Super easy install. No more check engine light when I hit the interstate. Could not be happier. I replaced from the exhaust manifold back, I also replaced the O2 senors while I was down there. I highly recommend this product

      sal

      Year: 1998Submodel: Wrangler

      Helpful (5)

    • 5/5

      Installation Time: Afternoon

      September 06, 2018

      Review from Magnaflow Direct-Fit Catalytic Converter (87-92 Jeep Wrangler YJ 2.5L, 91-92 Jeep Wrangler YJ 4.0L)

      Perfect fit

      Perfect fit into exhaust system, easy install, works great.

      Stephanie

      Year: 1991Submodel: Wrangler

      Helpful (5)

    • 4/5

      Installation Time: Afternoon

      August 20, 2018

      Review from Magnaflow Direct-Fit Catalytic Converter (97-99 4.0L Jeep Wrangler TJ)

      Good

      Me myself I was very pleased with the product and I'm very pleased with it sounds good it's getting good flow and airflow the only thing I have to say is is it is not a direct fit my 99 Jeep Wrangler manual 4.0 I had to drill out the holes for the downpipe for the flange which really was no big deal but just so you know you do have to drill out those holes at least on a 99 Jeep

      DavidC

      Year: 1999Submodel: Wrangler

      Helpful (7)

    • 5/5

      Installation Time: Afternoon

      July 07, 2018

      Review from Magnaflow Direct-Fit Catalytic Converter (97-99 4.0L Jeep Wrangler TJ)

      Wonderful product

      Was a bit challenging getting the old pipe off being 19 years of rust getting in the way but it was an easy install. Already seeing an increase in fuel economy after 2 tanks and the exhaust note got a little raspier. Really pleased with how it turned out

      Bryan

      Year: 1999Submodel: Wrangler

      Helpful (6)

    • 5/5

      Installation Time: Afternoon

      May 02, 2018

      Review from Magnaflow Direct-Fit Catalytic Converter (97-99 4.0L Jeep Wrangler TJ)

      Great system

      Nice little improvement in performance (no other changes being made). Great fit and hundreds ($) less than OEM if I could have found that.

      XXXXXX

      Year: 1998Submodel: Wrangler

      Helpful (8)

    • 5/5

      Installation Time: Less than 1 Hour

      September 05, 2017

      Review from Magnaflow Direct-Fit Catalytic Converter (97-99 4.0L Jeep Wrangler TJ)

      Easy Install, Great Product

      This catalytic converter went on easily, sounds great, it looks great, and is a decently fair price. I have always liked magnaflow exhaust systems, they never disappoint.

      Alec

      Year: 1998Submodel: Wrangler

      Helpful (6)

    • 5/5

      Installation Time: Afternoon

      August 14, 2017

      Review from Magnaflow Direct-Fit Catalytic Converter (97-99 4.0L Jeep Wrangler TJ)

      Replace Catalytic Converter

      A great product! Once the removal of the old exhaust system was complete, the installation went quick and easy.

      LarryB

      Year: 1997Submodel: Wrangler

      Helpful (6)

    • 5/5

      June 30, 2017

      Review from Magnaflow Direct-Fit Catalytic Converter (87-92 Jeep Wrangler YJ 2.5L, 91-92 Jeep Wrangler YJ 4.0L)

      Good cat

      Not bad, it was easy to install and sounds good! The old one was hard to take off.

      ChristopherS

      Year: 1995Submodel: Wrangler

      Helpful (7)

    • 5/5

      Installation Time: Less than 1 Hour

      June 23, 2017

      Review from Magnaflow Direct-Fit Catalytic Converter (97-99 4.0L Jeep Wrangler TJ)

      Passes smog in California

      Got this to replace the stock cat and its direct fit , the installing is easier than taking out the old set up , took my jeep to get smogged and passed , and it sounds good even with the stock muffler

      OlegarioR

      Year: 1998Submodel: Wrangler

      Helpful (11)

    • 5/5

      Installation Time: Afternoon

      May 30, 2017

      Review from Magnaflow Direct-Fit Catalytic Converter (87-92 Jeep Wrangler YJ 2.5L, 91-92 Jeep Wrangler YJ 4.0L)

      Great cat

      Easy install, only problem was getting the old rusty one off. Sounds great and performs as it should.

      BenV

      Year: 1992Submodel: Wrangler

      Helpful (7)

    • 5/5

      Installation Time: Less than 1 Hour

      May 17, 2017

      Review from Magnaflow Direct-Fit Catalytic Converter (97-99 4.0L Jeep Wrangler TJ)

      To Easy

      Purchased for my 98 Jeep wrangler muffler guy had cut out my catalytic which affected my service light. All i had to do is cut away the trash work that was done and buy a slide on sleeve for joining at the rear. First rate product easy off and easy on, a few clamps and your done. Fits like factory. The hardest part was taking the saw saw to get the old stuff.

      AdrianA

      Year: 1998Submodel: Wrangler

      Helpful (9)

    • 4/5

      Installation Time: Afternoon

      March 21, 2017

      Review from Magnaflow Direct-Fit Catalytic Converter (00-04 Jeep Wrangler TJ)

      No gasket

      Everything fit perfectly and was top of the lone except there was no gasket included with the new converter.

      IvyS

      Year: 2002Submodel: Wrangler

      Helpful (8)

    • 5/5

      Installation Time: Afternoon

      February 28, 2017

      Review from Magnaflow Direct-Fit Catalytic Converter (97-99 4.0L Jeep Wrangler TJ)

      Very satisfied.

      Although i had to buy the muffler and tailpipe afterwards because the existing exhaust was larger diameter than the catalytic portion of the exhaust system. My wife likes the quieter drive so rated two stars for loudness volume. Rated exhaust note a 3 as it is in the middle range meaning just about perfect...Jeep had a surge under power with old exhaust but much better now so think this has better back pressure for the engine.

      RickK

      Year: 1997Submodel: Wrangler

      Helpful (7)

    • 5/5

      Installation Time: Less than 1 Hour

      July 10, 2016

      Review from Magnaflow Direct-Fit Catalytic Converter (87-92 Jeep Wrangler YJ 2.5L, 91-92 Jeep Wrangler YJ 4.0L)

      Magna flo cat

      We'll made. Went on easily. Very happy with this product.

      Mudkucker

      Year: 1991Submodel: Wrangler

      Helpful (8)

    • 5/5

      Installation Time: Less than 1 Hour

      March 11, 2016

      Review from Magnaflow Direct-Fit Catalytic Converter (93-95 Jeep Wrangler YJ w/ 4.0L or 2.5L)

      Awesome product well worth it

      This catalytic converter is nice, compact design and easy to install. My old stock was broken in the inside, once I installed this one my engine power improved along with gas mileage, it even sounds better, great buy Im very happy with my purchase Im glad I chose this one, Thanks Magnaflow!!

      Sgtstorm1

      Year: 1995Submodel: WranglerTucson, AZ, USA

      Helpful (9)

    • 5/5

      Installation Time: Less than 1 Hour

      March 11, 2016

      Review from Magnaflow Direct-Fit Catalytic Converter (97-99 4.0L Jeep Wrangler TJ)

      Fits perfectly and sounds great

      It is well priced fits great sounds good and looks to be good quality

      Tcoevt1

      Year: 1998Submodel: WranglerMichigan, USA

      Helpful (8)

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