Just a note. The front of the splitter can be a bit tough to unscrew. A medium sized Channel lock or Vice grip pliers with the jaws wrapped with tape to prevent scratches would be a good start. If with the tape the pliers just slide, try wd40, liquid wrench or the like and let it soak, and try again. If that fails, remove the tape and don't worry about the scratches.
If you ever thought the throttle was a bit sticky, slow to slow down like the cable was hanging, now would be the time to fully pull the splitter slide out and clean the slider and the housing.
Again, hope this helps,