just a quick question here. i have been hearing alot about lt's and wanted to know if there worth it? kind of interested in them. i was looking at the pacesetter's at summit racing ( dont reccomend mac or bbk, etc..) and wanted to know what diff would it make. in terms of sound i mean. and would they fit even though my cats are off. someone told me they had to be welded on which is no biggy. if i got em i would;nt want a little bit of a diff i just want a noticeable diff plain and simple. what do you think?