I just ordered BBK shorty headers and a BBK o/r H pipe from Summit for the '94 Cobra. I'm wondering how long I should expect to spend installing them. Since I got the off-road midpipe, I have to do it myself (probably would have anyways to save $$), but I have plenty of help, although this is the first Stang we've worked on. Any tips or suggestions would be greatly appreciated, as well as a prediction of how long I'll be out of commission. Thanks.