RSI Throttle Block PolarisBillet aluminum Replacement throttle block assembly is smaller than stock Revolutionary slim design opens up much needed handlebar space for clamping on accessories like Handguards, Mountain Bars, GPS etc. Includes RSI billet push button engine kill switch which is built into front of the throttle block which eliminates the stock engine stop switch Utilizes the stock throttle lever pivot pin safety switch (EFI Models Only, Carb models eliminate safety