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  1. M

    Yamaha 5.7L exhaust manifold to Mercruiser conversion

    They have two hoses to the riser and one on the bottom of the manifold.
  2. M

    Yamaha 5.7L exhaust manifold to Mercruiser conversion

    Hello all, I have been a long time lurker of reading posts and purchasing, but I finally ran into my first issue. I purchased a 1995 Chaparral Signature 24 from someone in need of cash. Long story short - the exhaust manifold was rusted through and needed replacing. I ordered the Sierra...
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