Ultra Thrust Sport Muffler, Rossi 65/91. UTSM90
Performance Specialty Nelson Ultra
Thrust 61/91 Sport Muffler fits Rossi 65/91, OS Max 61/91
FX, AX, SF (and all Clone Engines). Optional bridge adapter is available for
this muffler to fit on the Rossi 60 engines with 35.6 mm distance between
the muffler mounting screws.
Over 90% of the Q40 and Q500 race
class competitors worldwide use the Nelson
mufflers.
THE SPECS ARE:
Muffler/Pipe Body Diameter: 1.56
inch (39.7 mm)
Muffler/Pipe Length: 9.5
inch (241 mm)
Mounting Screws Center to
Center Distance: 1.65 inch (42 mm)
Muffler Weight w/o Screws: 5.9 oz
(167 grams)
Muffler Mounting Screws: 4-mm thread;
40-mm Long
Tuned RPM Range: 10,000 to 15,000
RPM (Depending on the make of the
engine)
PN: UTSM90
Shipping & Handling
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