YES THE MANIFOLDS WILL FIT FROM THE 97-2001 ACTUALLY BUT WHERE YOU WILL RUN INTO A PROB, IS THE DOWN PIPES ON EACH SIDE THEY ARE 3 BOLT AND AND I BELIEVE 12 MM BOLTS OR RATHER STUDS SO YOU WILL NEED THE DOWN PIPES FROM THE MANF TO THE REST OF THE EX SYS, AND THE 96-97 AND UP USE THE FUNNY SHAPED CATS , , ONE WAY OUT OF THEIS TYPE OF MESS IS , TAKE THE HEADS TO A MACHINE SHOP AND HAVE THEM DRILL AND TAP THE SPOT WHERE THERE ARE NO STUDS AND JUST USE THOSE HEADS ,LOOK CLOSE AT THE HEADS AND THEY HAVE THE BOSSES CAST WHERE THE LATER STUDS AND THE EARLY STUDS GO JERRY