05-13-2011, 06:04 AM
I like to hear from those of you who are experienced with the 4.3 v6 some tips on squeezing some extra power out of it without major modifications. Most of my knowledge is with carbureted 4.3s. I've checked on powerchips and other programmers, but for some reason nobody made a program for the 2007 classic... I don't know if it's a confusion considering the body style changed later that year or what, but I bought the superchips programmer anyway. It wouldn't recognize my VIN and wouldn't work at all. I've seen mention of a custom software CD that I could use my laptop with an OBDII attachment to program with, but still not for my 2007. Any advice on this and any other proven methods of performance upgrades (Cold air, headers, exhaust, pulley kit etc...) would be greatly appreciated!