GENERAL - 7A-390-823225--1 1096
Exhaust Tube Requirements
IMPORTANT: When installing thru-transom ex-
haust, it is recommended that the exhaust
bellows on the transom assembly be removed.
This is necessary to avoid creating a vacuum at
the exhaust outlet in the propeller at higher boat
speeds. This vacuum could degrade propeller
performance on some boats.
IMPORTANT: When installing thru-propeller ex-
haust:
• With any application, installation of an ex-
haust tube will increase exhaust noise.
• With Bravo One and Bravo Two Drives an ex-
haust tube MAY BE INSTALLED for a slight in-
crease in performance.
• With a Silent Choice Exhaust System the ex-
haust bellows must be removed and an ex-
haust tube MUST BE INSTALLED.
• With most Bravo Three Drive Models an ex-
haust tube MAY BE INSTALLED for a slight in-
crease in performance.
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