[LX5liter]

IMO, if your going to re-do the whole exhaust system anyways, go with the longtubes. They are better for power on the top end (due to the scavenging effect of the collectors) and you won't lose a lot of bottom end. Like 1hot5.0 said, they can be a pain to install and you will have to get/build a new H or X intermediate pipe, but it will be done right and you won't have to worry about your exhaust for a long time.