The 255lph SVT Focus fuel pump is a fairly easy install as it is a direct replacement for 99-04 GT's, 03-04 Mach 1's, and 99-01 Cobras, although you do have to remove the fuel tank. It is supposedly good for ~450hp, although in my procharged application, duty cycle maxed at just over 410hp. In a naturally aspirated build requiring more fuel I would recommend it although in a blown application, I would beware. I developed a "shift hesitation" and tried everything to mitigate the problem with no avail. I then removed the pump replacing it with the 03 cobra tank and dual pumps. Problem solved.