I am really thinking about getting some 4.10 gears & a Tlok installed. But when I do this, how do I go about getting the correct chip for my car? Can I order one online or do I need to find some place local, so they can install it. If I can order online. What do I need to tell them so they will know how to program it. Also, do I need to get the chip reprogramed everytime I do a new mod? All I have done so far to my stang is installed an Ebay CAI & a set of GT takeoffs (exhaust). Also, what brand of chip works the best in our V6 mustangs. I can really use all the input. If I am going to spend all the money on gears & a Tlok, I just want to make sure I get the right chip to get the best performance out of my car. Thanks again.