I'm about to install the free spirits xpipe on my 2017 triumph Bobber. Trying to add some power, improve the sound and maybe make the motor run cooler. Does anybody know if it is absolutely necessary to get the motor re-mapped after the install? I'm fairly new to working on my own bike but I'm good with my hands and a quick learner. I know its probably a good idea to get it re-mapped but can anybody with more experience weigh in if its absolutely necessary ? if so why? Much obliged.