I think it sounds good, but I see my ls more on the sport side than the luxury now, so I love my bassani set up, not too loud, nice deep rumble, loud when you want it to be. If you delete only mufflers and keep the resonators, it will loud a lot louder and have a deep rumble. I like missing linc's set up, slp resonators, x pipe, no mufflers. Dont delete resonators and keep stock mufflers though, it sounds like crap.
Check out you tube, a lot of video's on exhaust there.
Also, check out exhaust on mustang, since they have so many, you can compare how each set up compares to each other, IT IS NOT TO BE COMPARED TO HOW AN LS WILL SOUND, just how each set up changes the sound of the exhaust to give you an idea.