I installed a CAT from Eastern Catalyitics on my LC and the check engine code came to P0430 went away on its own. The built quality is identical to the OEM cat came off the truck. The flanges and tubing are thick as the OEM and came with the necessary gaskets too. They offer 50K or 5 year warranty on the CAT.
Install new OEM flange bolts and nuts.
Part Number: 9008010064
BOLT, FLANGE
Part Number: 9008017187
NUT
Install new OEM flange bolts and nuts.
Part Number: 9008010064
BOLT, FLANGE
Part Number: 9008017187
NUT