» » » » Building a Custom Lift Muffler & Exhaust System

Building a Custom Lift Muffler & Exhaust System

Here are some pics to show you how some “out of the typical box” thinking can help in making the exhaust as it should be – Safe, practical, and politically correct for the vessel to allow an easy “get around engine room” and one that truly fits the installation.

Starting with a "factory" inline muffler shape applicable to the install.
Starting with a “factory” inline muffler shape applicable to the install.
Gathering the necessary "puzzle" pieces.
Gathering the necessary “puzzle” pieces.
Outlet for muffler "dip tube" and side exhaust outlet.
Outlet for muffler “dip tube” and side exhaust outlet.
Building the custom mitered exhaust outlet tube to "fit" the boat.
Building the custom mitered exhaust outlet tube to “fit” the boat.
Custom "dryriser" and muffler inlet design.
Custom “dryriser” and muffler inlet design.
Custom "dryriser" and muffler inlet design.
Custom “dryriser” and muffler inlet design.
Getting the "hull" set up for an exhaust outlet.
Getting the “hull” set up for an exhaust outlet.
Side exhaust outlet tube mock-up - You need to protect the boat's LP paint job!!
Side exhaust outlet tube mock-up – You need to protect the boat’s LP paint job!!
Outlet flange building process on "mold-release" tape.
Outlet flange building process on “mold-release” tape.

COMPLETE !!! - notice the water bypass-this system showed under 25" H2O pressure at WOT and was "super" quiet...
COMPLETE !!! – notice the water bypass-this system showed under 25″ H2O pressure at WOT and was “super” quiet…