Channel right-bank exhaust gases and reduce tailpipe emissions in one bolt-in unit with the Dorman – OE Solutions Exhaust Manifold with Integrated Catalytic Converter 673-650. This right-side manifold converter is a direct-fit replacement for the 2003-2004 Infiniti M45 (V8-4.5L) and the 2003-2006 Infiniti Q45 (V8-4.5L), engineered to match the original equipment’s fit and performance on those applications.
- Direct replacement: designed to drop in like the factory manifold converter on the listed vehicles.
- Convenient kit: ships with inlet and outlet gaskets plus outlet/downpipe hardware — 4 bolts, 4 washers, 2 nuts and 2 studs. Inlet mounting hardware, clamps and hangers are not included.
- Durable construction: stainless steel body and tubes with a ceramic converter substrate and an attached aluminum heat shield, built within strict tolerances.
- Emissions-legal: CARB certified (Executive Order D-798-9) and New York certified when used on an approved application.
The one-piece design uses a round body with flanged, round inlet and outlet ports (2.5 in inside diameter each), an uncoated finish, and two sensor ports with a pre-converter oxygen sensor location, at roughly 30 in overall length. Country of origin: United States. If a failed or leaking exhaust manifold or catalytic converter is the cause of your problem, this assembly replaces it.
Interchange: 14002CR910 · Manufacturer part number 673-650 (also 673650)










