If you're viewing this item, chances are you're like the countless other people we run into who have a cracked, leaking, or otherwise bad catalytic converter on their vehicle.
Pacesetter has your solution with this bolt on direct replacement
catalytic converter. Simply unbolt and remove your bad converter and attached piping, and reinstall the new Pacesetter converter and attached piping. You'll be back on the road running as good as new in no time.
The part number for this item is Pacesetter 324416 and it fits 2004-2006 Nissan Sentra 1.8 Rear models.