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|Aqua Power Ltd Clamp-On Silencers|
Our clamp-on silencers quiet harsh noises produced by high
horsepower marine engines very well. The most exciting feature is that no power
is lost in most installations which makes it an ideal marine racing muffler.
The Clamp-on silencer is a compact and light weight version of our product. High power models are frequently used on 1200 horsepower supercharged engines.
Installation is straight forward: slide it onto the pipe and clamp it in place.
Exhaust systems using through transom tailpipes that dump all the water into
the exhaust stream at the very end of the pipe, such as Stellings and CMI, typically have
noise reductions that are 3 db greater than the ratings shown.
All models accept an external rubber flaps for additional surge protection.
To select a clamp-on silencer for your boat begin by determining your engine
power then restrict your selection to the power ranges that include your engine. Next
determine the outer diameter of your tail pipes. Determine what type of tail pipes you
have, standard or stellings. The outer tube of a standard tail pipe extends to or
beyond the inner tube. The inner tube of a stellings tail pipe extends farther
back than the outer tube by as much as 3/4". If your boat
has a swimboard or other obstructions near the tail pipes you may need to determine
if the case diameter (outside diameter of the silencer) will interfer. Also see if
the extension length of the silencer is acceptable. If you know the decibel level of
your engine with open exhaust you can subtract the noise reduction to determine the
approximate final noise level with silencers installed. Adding external rubber flaps
sometimes reduces the noise level by another two db. All that is left is to read
the part number. Our sales department may be of considerable help in this process.