Dann Demain
New member
i am converting my stock exhaust to through the transom exhaust on 1987 mercruiser 5.7, what parts are needed to convert this ? any help would be greatly appreciated
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Ayuh,..... Agreed,.... It'll make alota noise, but no more power,.....you would need to pull the engine, remove and cap the exaust Y pipe. Then cut 3 or 4 inch holes at /near/below the water line (you need so seal the raw wood also)and connect with exaust hose and a 90 deg elbow and 2 clamps per each side of the hose connections
And if your looking for added sound or added performance FORGET IT