Yes, but you also need a standard relay and a 7,5 A fuse (they go in the relay box left of the battery, everything is alread pre wired and plug and play). You can get them separately if you don't find a complete kit.
Then you decide if you sacrify the connectors or get male 3 way connectors (only two being wired) to match the sub harness and avoid any modification.
The sub harness gives you 3 to 4 connectors to plug things in. On mine I have heated grips, LED lights and a USB power. You should not exceed 7 amps though.