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

Item J117933
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Market Price $310.99 You Save 11% ($33.18)
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$277.81 (each)

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      Product Information

      Features, Description, Specs & Installation


      • Ribbed Body and Engineered to Minimize Distortion and Ceramic
      • Enhances Exhaust Note
      • Ceramic Honeycomb Design
      • 1/2" Welded Joints
      • Mandrel-Bent Tubing Design
      • Premium Stainless Steel Construction
      • Ceramic Honeycomb Finish
      • Intended for Street Use
      • CARB Compliant Pre-OBD II
      • Easy Installation
      • Fits 1987-1990 4.2L Jeep Wrangler YJ Models


      Increased Performance. Upgrade the stock converter of your 1987-1990 Wrangler YJ with the Magnaflow Direct-Fit California Catalytic Converter. It features a mandrel-bent tubing design to help in decreasing the exhaust turbulence for utmost efficiency. It also allows your vehicle to experience unrestricted airflow by keeping the same diameter through every curve. Even more, this catalytic converter produces a dynamic sound that will turn heads off. Therefore, with the improved performance and airflow, your vehicle will experience greater fuel effectiveness, enhanced torque, and horsepower.

      Superior Construction. Magnaflow carefully constructed the Mandrel-bent Direct-Fit California Catalytic Converter from premium stainless steel for increased strength and durability. It also has a ribbed body to reduce distortion and expansion when this converter is heated up. Additionally, the ribs hold the ceramic catalyst in the appropriate position and create a channel that safeguards the cushioning mat from direct contact to exhaust emission.

      Ceramic Honeycomb Coating. The Magnaflow Direct-Fit California Catalytic Converter is designed using a honeycomb design and completed with a ceramic coating for maximum airflow. Moreover, the ceramic coating allows this converter to hasten the breakdown and conversion of exhaust emissions to nontoxic gases.

      No Tune Required. The Magnaflow Direct-Fit California Catalytic Converter is engineered to enhance the performance of your 1987-1990 Wrangler YJ without re-setting its computer.

      CARB Certified. Best of all, the Catalytic Converter is 50 State Emission legal under CARB Compliant Pre-OBD II and is designed to meet all California emissions regulations.

      Application. The Magnaflow Direct-Fit California Catalytic Converter is custom-made for installation on 4.2L engines found in 1987-1990 4.2L Jeep Wrangler YJ models.

      Fitment: 1987 1988 1989 1990 Details

      Magnaflow 339225

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Direct Fit California Catalytic Converter

      Customer Reviews (2)

        Reviews of Magnaflow Exhaust products have an average rating of 4.6 out of 5

          Questions & Answers

          10 More Questions

          Will It Fit My Wrangler

          • YJ Wrangler 2 Door - 87, 88, 89, 90

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