Review on 🚗 Dorman 674-959 Exhaust Manifold with Integrated Catalytic Converter - Non-CARB Compliant Solution for Improved Vehicle Performance by Cris Drew

As other reviewers have said, it fits, but will likely require some heat shield modifications. 2005 Nissan Altima 2.5L Had to remove the serpentine belt and remove the alternator. Reused the top O2 sensor. I also modified the stock front heat shield with a dremel (extended the holes in the sheet metal) and attached everything including the O2 sensor before bolting it to the engine. I left the head bolts a bit loose while I tightened the bolts that connect the Dorman to the downstream catalytic converter (the exhaust pipe under the car that goes to the muffler). Everything aligned and then tightened. Dorman fits well, comes with all gaskets and hardware and appears to be working well. Now I've even added some mpg to my city ride. Watch the YT video to install in your specific vehicle.