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  1. 72Plymouth

    Exhaust manifold leaks

    My passenger side manifold has an exhaust leak. It seems to have started after the engine was rebuilt. I just had the exhaust system done and it still leaks around there. They said it was coming out near that heat riser thing and where it connects to the head. There is a lot of rattling noise...
  2. 72Plymouth

    Exhaust and Muffler Recommendations

    I might do dual exhaust on the 318 with 2 1/4" pipes and Flowmaster 40s. I've had them on two of my other cars and like them. I believe I read here that dual 2 1/2" would be too much for the stock motor. I like how the factory tailpipe is barely visible, so I was thinking about keeping it...
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