I have yet another question for you guys, looked through the search but could not find it. A friend of mine has a 86gt, me and him have the same exact guages. I will be eventually hooking up my oil pressure guage soon, was wondering, do you have to keep the original factory sending unit or can I ditch it and run my oil pressure line to the spot that the unit came from, or do I have to keep it and tee it off. My car is 88 gt. He was telling me that the stock oil pressure sending unit, not only runs to the dash, but also to the computer?