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2009-2014 Yamaha R1 M4 Standard Dual Undertail Slip On Exhaust System w/ Catalytic Converter Eliminator - Carbon Fiber Mufflers (YA9934)

2009-2014 Yamaha R1 M4 Standard Dual Undertail Slip On Exhaust System w/ Catalytic Converter Eliminator - Carbon Fiber Mufflers (YA9934)
 
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58cycle Code: M4 PN YA9934

Description
 
Standard slip on system with catalytic converter eliminator and CARBON mufflers.
This slip on comes with dual carbon fiber canisters and eliminates the stock catalytic converter. Saves 5lbs over stock and produces 5 more horsepower. Comes with O2 bung and adapter for running the stock O2 sensor or aftermarket O2 sensors.

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2009-2014 Yamaha R1 M4 Standard Dual Undertail Slip On Exhaust System w/ Catalytic Converter Eliminator - Carbon Fiber Mufflers (YA9934) 2009 2010 2011 2012 2013 2014

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