This is a newly developed 4-stroke muffler system for the O.S. 70 or 91 Surpass
series of engines. This muffler is designed for side mounted installations. It
closely fits the engine. The unique muffler design routes exhaust gas out the
bottom of the cowl, and further results in a smoother exhaust note. This is
a Pitts style muffler. .
Includes: (1) Muffler
(1) Muffler locking collar
(1) Mounting bracket
(1) Pressure tap
(1) Mounting stud
(1) Mounting screw
(2) Lock washers
MORE+++
Specifications: Length of muffler body 4.75"
Height of muffler unit 1.45"
Degree of angle 25 degrees
Requires: Mounting to engine
Comments: To clarify mounting--The "mounting stud" is a cylinder that is
threaded on one end. It screws directly into the engine's exhaust
port. The muffler itself has a collar with a set screw in it. The
collar on the muffler slips over the other (non-threaded) end of the
stud, and locks down with the set screw. No "header" is used for
installing this muffler, the stud replaces it. This will allow the
engine to sit close to the engine (as a pitts style should.)
Updated 3/14/02dew
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