hey nick,its me again i think you should leave this forum and come back after you grow up son,anyway just felt like telling you my uncle works at my local nissan dealer and did some looking into this matter every one at the dealership says the same thing the 2.5l 2003 nissan altima falls short of any year maxima 3rd,4th,and 5th gen. maxima auto or manual he said you might ba able to take a 3rd gen. maxima if he's auto and your manual and able to get the jump. but other than that he said your full of sh*t !!!!!!! BY THE WAY I THINK WE SHOULD JUST STOP REPLYING TO THIS LITTLE ASS HOLE AND JUST LEAVE IT BE ITS A HOPE LESS CAUSE,HE'S NEVER GOING TO BEAT A MAXIMA UNLESS THE CAR IS SICK OR THE DRIVER ISN'T REALLY RACING !!!