only if you are going to be using a lot of power, then you should upgrade it
It's ok, you start by taking out your passenger seat, and taking gas tank out, then remove plastic fan on pass side motor with few bolts, then the alt kit runs off that shaft (crankshaft), and alt goes behind motor w/ bracket, and kinda behind and under back of motor with a belt connected to new pulley you bolt on to crank. Thats it! Painless! hour to 2 hour job at most, but fun 2 hours