Well what do you want to do? Drag race, roll race, street ride? Going bigger motor you pay alot up front but no hidden costs. Go turbo you have to pay for the kit but you will be buying some stuff besides the kit. Going turbo will be spendy. But all depends on what your needs are. I do love my motor bike cause when I race my bike jumps out in front cause I have lots of power in the mid 4ange and top end. Turbo bike has to spool up and by the time it spools and gets going and gets traction it's to late.