x pipe from 98 GT fit different year

come on guys, someone has to know this off the top of their head or done the same thing I'm thinking of....it is a flowtech x pipe....I don't see why it won't fit but I don't want to get it to find out that it won't. and if it doesn't fit, what is the reason it won't ?
 
that is exactly what I wanted to hear. Thanks guys...I have to buy O2 extensions with whatever piece I have. I just have my rear O2's ziptied to the frame...they don't do anything anyway....other than that little pesky light that comes on..owell