hi man i have a neo 25 in a r32. I went to nissan and bought all the parts cost $360 all up that was a timing belt, tensioner,new water pump. Its worth doing the lot if ya have the coin! If ya just change the belt, the tensioner could seize futher down the track wear the belt and snap! Ya dont want that! Plus the timing belt has to be removed to change water pump.... So also if it stuffs up to you have to pay more mechanic bills! Get the drift....