Mikuni HSR42 Total Kit. Fits Evolution Big Twin 1984-1999 - American Prime Manufacturing Kawasaki * Utilization of the factory

* Utilization of the factory dual cable throttle system ensures safer operation

6:1 Compression Ratio with 80cc Head Chamber Volume

* Fits FL Softail 2011-2017

* Andrews 4 speed gears

* Undermount Indicators clean up the front of your bike by tucking these small LED indicators underneath your hand controls

Mikuni HSR42 Total Kit. Fits Evolution Big Twin 1984-1999 - American Prime Manufacturing Kawasaki * Utilization of the factoryMikuni HSR Total Kit 42 8 for 1984 thru 1999 Harley Davidson Evo Big Twin Models. Mikunis HSR Total Kit dramatically improves the performance on all Harley Davidson engines and delivers unmatched throttle response and acceleration! With this kit even more improvement is delivered by both this specially designed Mikuni manifold and this high flow matched K&N air cleaner. For the maximum available increase in all round performance and power available,