Where did you get your rails? Were they the universal, or the mkiv brackets? Im having a bitch of a time finding any... if they were the universal, what mods did you have to do to get them mounted?
If the piping is 4", does it narrow to 3" at the downpipe? Or do you need a 4" dp?
Also, anyone removed the heater/AC/radio/airbags? How much weight did you save?