555728 Valve Throttle Jr LO 206     .285"              

555732 Valve Throttle Jr LO 206     .310"              

555733 Valve Throttle        RED      .440"             

555734 Valve Throttle       BLUE      .520"             

555735 Valve Throttle       PPL        .342"             

555740 Valve Throttle      GREEN     .490"            

555741 Valve Throttle      GOLD      .570"    

You can buy the official tech tools from Sox Racing (803) 791-7050