Thanks NITROUS! On to temperature gauge function. What did you use for a temperature sender for your factory dash gauge? I was doing a little research & it looks like I just need to go buy a second factory LS1 cylinder head temp sender, which is a two prong sender(?), connect one prong to ground & the other to the dash gauge. Is this the way to go, or??? P.S... Welded up a 2 1/2" dual exhaust, going into a single MagnaFlow dual muffler, to get me around. Sounds much better than open headers! The wife appreciates it too! Thanks, Gar