MOOSE RACING Top End Gasket Kit 810422MSE Pseudo Muffler for Road Rage II Mega Power System Fitment: Yamaha R1 R1M R1S

Fitment: Yamaha R1 R1M R1S 2015-2023 (Note 2020 + R1 riders can call in the orders to have front 02 sensors added for an extra charge if your tuning cannot remove the 02 sensors)

Cover is made of chrome-plated steel (base sold separately)

Speedometers have 5/8"-18 thread

Installation Instructions Click Here > FSK-20ZH2-K

/ Stock Muffler = 3

MOOSE RACING Top End Gasket Kit 810422MSE Pseudo Muffler for Road Rage II Mega Power System Fitment: Yamaha R1 R1M R1SMoose can now handle all your gasket and seal needs at a fraction of OEM cost High tech materials provide unmatched reliability and performance Rebuild the engine and transmission with total confidence as each set is designed for durability and accurate fit Oil seals are genuine OEM replacement seals Performance sets designed for a piston replacement Includes every gasket, O ring and seal required to rebuild a top end; valve seals, head, base,