Thanks Jay! And does the car run at 14.4 V when running as opposed to 12 V when off. THat is what i was told. THe MTX runs at 155 x 2 @ 2 at 14.4 and 100 x 2 @ 2 at 12 v....was wondering which one i would get.
John when you car is off you'll get 12v when it is at idle you should get 13.8-14.4v when your car is above idle you should get a straight 14.4v. On my truck it idles with 14.4 so I would depending on the car. The best way to find out is get a DMM and check it yourself.