Triumph Street Triple 765R/RS SRS Variable Velocity Stacks

Its no secret that long velocity stacks give you more torque and shorter ones give you more power.  So what if you could have both?  Thats exactly what these SRS Variable velocity stacks do.  During acceleration the stacks are long helping get the bike going but as you start to reach higher up the rev range and all the way to max throttle the stacks raise and leave behind a short stubby velocity stack adding more power.  These are simple plug and play direct into the throttle body connector. Installation take about an hour and can be done by anyone who can change their own spark plugs.  More power has never been so easy.

Fuelling changes are recommended to get the very best out of this mod.