'87 Harley Davidson FXRS
	
		
	
	
		  | 
		Horsepower | 
	
	
		  | 
		Torque | 
	
	
		  | 
		CO% | 
	
	
	
		  | 
		Andrews EV3 cam, Cycle Shack exhaust with front and rear head pipes extended by 4.75", Doherty filter base with Doherty filter & S&S cover, Dyna 2000 ignition, Dyna DC6-5 twinfire II coil, modified '91 Keihin CV carburetor and tuning (at 100% throttle opening) | 
	
	
		  | 
		Andrews EV3 cam, Cycle Shack exhaust, K&N filter, Dyna 2000 ignition, '91 Keihin CV carburetor (at 100% throttle opening) | 
	
The largest gain was made via the extension of the head pipes, and preliminary testing indicates that additional improvements might be made by continuing.
lower triple clamp to mount GSX-R fork on FXR
upper triple clamp to mount GSX-R fork on FXR
caliper brackets to mount PM calipers on GSX-R forks
FXR tank with frenched-in GSX-R filler cap