I have had some trouble with my '94 LC rattling at low RPM's. I first resolved the problem by putting some hose clamps on the heat shields around the pipes in the right front wheel well. Then the heat shield came loose above my cats , so i welded that back down. Now i think the cats are starting to rattle from the inside. Any reccommendations on what to replace? The whole system? Any good reccomendations on where to get the parts? Will i need to cut and re-weld, or are there any bolt together systems that work well? I cant seem to find any major exhaust manufacturers that sell a system made for the 94 LC.