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Niether if you have ABS. Buy a dual solenoid kit. The chances are slim that a single solenoid setup will damage your ABS box, but it HAS happened, and a dual solenoid kit is cheap insurance against such damage (which is VERY expensive to repair). I've used the Granatelli kit and currently use the PMP kit. They are both good, but the PMP is more stealthy and allows more room for the whipple intake.
I have the SLP kit sitting in my garage...I should be installing the kit in about a week along upgrade pads, brake lines, and LCA's and relocation brackets.
line locks are very easy to make and install yourself if you have the know how. all it is, is a solenoid that is normally open. what you do is cut the front brake line, bend and flare the cut ends, and attach it to the solenoid (make sure its a solenoid that is normally open, or you are going to have all sorts of trouble) then wire it up to a switch somewhere. then when you want to use it, you hit the brakes, then hit the switch, then let off the brakes, drop the clutch and go to town!