I HAVE MAC 1 3/4 FULL LENGTH HEADERS ON MINE THEY WEREN'T THAT BAD TO GO ON. THE WORSE PART WAS YOU HAD TO REMOVE THE PASSENGER SIDE MOTOR MOUNT.IN MY CASE I HAVE AN AOD AND I DID NOT HAVE THAT MANY CHOICE'S. IF I HAD TO DO IT AGAIN I WOULD OF WENT WHIT HOOKER HEADERS. THE ARE A VERY GOOD FIT...