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RTS (Rapid Tuning System) 2019-2023 Yamaha YZ 450 FX - - 2019 Yamaha WR 450 F - - 2018-2024 Yamaha YZ 450 F - -
EXPECTED AVAILABILITY DATE: 10/31/2023
Offers power gains through the entire rpm range and reduced weight
Features exhaust valve for improved rideability in lower RPM
1 kg) against the standard stock system
FMF Q4 HEX Muffler KX450F 2016-18 042328 1821-1724 King of the Road Hat RTS (Rapid Tuning System) 2019-2023The Q4 employs intricate chambers, baffles and proprietary multistage packing material With the Q4 you dont need to hear the power, just feel the power! Less sound equals more ground Power gains throughout the entire rpm range Spark arrestor included Pounds lighter than stock Rugged design for off road endurance Made in the U. S. A.
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