I know about the belt thing, but they charge too much to do it, I just needed them for their dianostic ability really, me and my bro can do a timing belt and he won't charge me much at all, if anything. Just notcied something wierd, LS models are supposed to redline at 6800 rpms and my in dash speedometer redlines at 8k rpm, makes me wonder if someone changed the speedometer to the gsr model