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  1. Cat needs to be replaced... Warranty Void. Advice

    Titan Engine, Transmission & Drivetrain
    Hey all. So here is my dilemma, let me know what you all think I should do. I had JBA headers installed back when, and the guy that installed them welded the cats to the headers. Obviously Nissan won't work on it because of the welded situation. So, I took it to a very reputable muffler shop...
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