

Original exhaust valve kit made by S3 for Gas Gas EC/SM/MC/XC/GP/RANGER 200-250-300 2T years 1997-2020
Composed by: Valve, pins, bearings, bushes and screws.
The central valve of this kit is the OEM of the models 2019-2020.
Guarantess a more linear power delivery on models until 2014 and a slight increase in high revs for 2015-2018 models.