These adapters fit neatly into the stock plastic end cap by replacing an existing rubber grommet (see installation instructions for more info). The adapter provides just enough exposed tube length to mount the included TRS-1 spark arrestor external to the plastic end cap, just pick your spark arrestor color (Red, Black, or Blue) at checkout.
The inside diameter of the adapter exposed to exhaust flow matches that of the existing tube so no additional flow restriction is created. Use of this adapter allows the spark arrestor to be mounted outside of the end cap for easy removal & cleaning.
Kit Part# TRS-1-ST-4
Applications: Sherco/Scorpa two stroke models,125-300cc engine sizes for years 2014-2022.