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General Discussion

Through-transom exhaust

Thread starter TyAlley
Start date Sep 2, 2024

TyAlley

Member

Sep 2, 2024

I have a 91 Commander 21’ Jet boat that has a 468 BBC, 11:1 compression full roller motor with a big cam. Currently has the through-transom exhaust below the deck in the water so you can’t hear the cam. I’d like to move it above the deck out of the water with water cooled jackets. Any ideas on what I can do exhaust manifold wise to move them out of the water?

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