Ultra Thrust Sport Muffler, Rossi 40/45/46/53. UTSM40
Performance Specialty Nelson Ultra
Thrust Q40 / Q500 Sport Muffler fits Rossi 40/45/46/53, OS
Max 46, 50, 55 FX, AX, SF (and all Clone Engines). This muffler comes with
the adapter for the Rossi engines.
Check Test Data for this muffler with the Rossi 40
engine here.
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: 7.8
inch (200 mm)
Mounting Screws Center to
Center Distance: 1.45 inch (37 mm)
Muffler Weight w/o Adapter: 4 oz
(114 grams)
Muffler Weight with
Adapter: 4.8 oz (136 grams)
Tuned RPM Range: 13,000 to 17,000
RPM (Depending on the make of the engine)
The screws for mounting on OS Max engines
are #5-40 thread by 1-3/8 inch long (not supplied with
muffler).
PN: UTSM40
Shipping & Handling
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