4" Cyclone HP Series Inline Silencer, Polished 

4" Cyclone "HP" Series Inline Silencer, Polished, Sold In Pairs
For Engines Up To 650 HP (10" Long)

These silencers are designed for the customer seeking a simple "clamp-inline" version of the popular Cyclone silencers. By offering silencers in 3", 3-1/2", 4", and 4-1/2" inlet and outlets and sound expansion chambers of  4", 4-1/2", and 5", these units offer maximum noise reduction while retaining maximum power.

Constructed of all 316L stainless steel for maximum corrosion resistance.