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The MagnaFlow 5451446 is a CARB-compliant direct-fit catalytic converter for the rear exhaust position on 2007-2008 GMC Acadia, 2008 Buick Enclave and 2007-2008 Saturn Outlook. It bolts on with no cutting or welding, and gaskets and mounting hardware are in the box. Stainless steel body and tubing, a ceramic substrate and a single laser-fusion weld on the spun body keep leak points down. It suits owners in California and CARB-restricted states who need a legal replacement for a failed rear converter; generic universal converters are cheaper but not CARB-legal for these vehicles.
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Owners of these GM crossovers report the unit bolts up to the factory flanges and quiets exhaust leaks after a failed converter. Most praise the fit and the included hardware; a few note it is a pricey part compared with universal converters.
The MagnaFlow 5451446 is a direct-fit rear catalytic converter. It is a California Grade, CARB-compliant part with OBDII compatibility. It replaces the rear converter on the 2007-2008 GMC Acadia, 2008 Buick Enclave and 2007-2008 Saturn Outlook.
The body and tubing are stainless steel, and the substrate is ceramic. The spun body has a single laser fusion weld, which reduces leak points. The tubing is mandrel-bent for smooth exhaust flow. MagnaFlow developed it using 3D-scanned data and OE-style packaging to match the original fit and function.
It bolts on with no cutting or welding. Gaskets and mounting hardware are included. The exact application should be verified by year, make, model, engine family and rear-position fitment before installation. It has been tested for CARB compliance in California and other CARB-restricted states.
