’08 & Up GSX-R600 EVO-A Injection

The price of this kit DOES NOT include the '2011 & up GSXR 600 throttle bodies.

It Does include the adjustable velocity stack assembly, and the stack actuating motor. Please send us your 2012 & up GSXR throttle bodies, or we can source them for you.

The EVO-A is our 600 Sprint A Class Stock throttle body electronic fuel injection system. We added the EVO-A to our EVO lineup to deliver a wider power band through the use of adjustable velocity stacks.

At lower RPMs, generally below 12,500, the stacks are down, providing a much longer intake runner length which delivers more horsepower and torque in the lower RPM range. When the stacks lift off the throttle bodies, a shorter intake track length is achieved, and a significant increase in top-end horsepower is gained (10 to 21 hp).

The Hyper Racing EVO Fuel Injection Team has spent countless hours on the dyno, tuning and testing to determine the precise leng