I have a 91lx 5.0 mustang with a few mods nothin major bumped timing gutted air box underdrive pulleys, ne way i am in the process of purchasing a bassani x-pipe and i wondering what headers would be a good choice to go along with x-pipe by the way after the x im going to weld some bullit mufflers on and dump it off right after the mufflers. It should be screaming lol

 

well if the x pipe is made for shortie headers, you'll have to get those brands such as BBK,FMS are good because they have one piece flanges which helps to prevent leaks

 

if you get shorties make sure they are equal length