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Ships within 48 hours · Estimated delivery Sep 7 - Sep 12
420 and 428 MXZ racing chains are the strongest in their class giving you the best value-performance rating of any MX Racing Chain in the world today
Wear Resistance (Index=Std
RTS (Rapid Tuning System) for quick and easy track-side tuning
Articulated outriggers
Manufacturer Part Numbers:
FMF Racing Q4 Silencer Slip-On MX Exhaust Model:WR250F 420 and 428 MXZ racingFMF Q4 Slip On Exhaust FMF is the leader in high performance, quiet exhaust technology and the Q4 Slip On muffler is the perfect choice when looking to decrease sound levels without sacrificing horsepower. The Q4 exhaust employs intricate chambers, baffles and proprietary multi stage packing material, making it one of the best performing quiet mufflers available. With the Q4, FMF has proven you dont need to settle for a plugged up, horsepower robbing
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