My advise on installing long tube headers---BEFORE you install the headers, make sure you have insulated or wrapped any wires or lines that are close to the header tubes. This includes the brake line and fuel line that are attached to the inside of the frame rail. If possible these two lines need to be moved up to the hole that is about 3" above where they are attached right now. The transmission cable should wrapped and/or use the relocation bracket to keep it away from the header tubes. Make sure you route and zip tie all the wires as far away from the header tubes as possible, cause those tubes get realllllly hot. If you have any of the "black cable covering plastic", you can use it to cover the O2 extention wires. It won't prevent them from burning through if they contact the header tubes but it does make for a "neater" looking installation. If you don't do these things, it is a pain in the ass to try to do it afterwards. I didn't do it, and I am almost to the point of having the headers removed and selling them. Way to much hassle. The plus side is the substantial increase in power and acceleration after the re-tune.
Jay