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Message: <blockquote data-quote="Pappy" data-source="post: 510610" data-attributes="member: 3278">You have the exhaust housing and your inner exhaust tube. Exhaust tube indicates the engine is or was a 9.9hp. Now would be a good time to update to the 15hp megaphone. Worth up to a couple hundred RPM usually. There is no kit so it is individual parts and part numbers. Do not forget to replace your water tube grommets at this time. Did not see a pic of the adapter plate that bolts to the bottom of your powerhead. They will be located there. Good time to look at the thermostat as well and also a good time to replace fuel lines and overboard indicator hose, Loosen or remove coils and clean grounds, etc . </blockquote>