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. Pacesetter Catted Exhaust Manifolds are not CARB Approved. They are not legal for highway use in California or New York. You will fail an emissions visual inspection if you use this item in CA or NY and we can NOT ship this item to any California or New York address. The part number for this item is 324278 and it fits 2005-2008 Ford Escape, Mercury Mariner, 2005-2006 Mazda Tribute (3.0 V6 Models). It is the Rear side only.