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✓VEHICLE FITMENT: Fits for Chevy Silverado 1500 2014-2018/Suburban/Tahoe 2015-2019 and for GMC Sierra 1500 2014-2018/Yukon/Yukon XL 2015-2019 with 4.3L V6 or 5.3L V8 gasoline engines. Please verify fitment before ordering.
✓OE COMPATIBILITY: Replaces OE numbers 645159, 50497, and 50563. Designed as a direct-fit front catalytic converter set for compatible 4.3L and 5.3L truck/SUV applications.
✓SHIPPING NOTICE: Meets federal EPA standards. Not for sale, installation, or use in California, Colorado, New York, or Maine. Orders to restricted states cannot be fulfilled. Please check the vehicle label under the hood before purchase.
✓EMISSIONS SOLUTION: Helps address P0420/P0430 codes related to low catalyst efficiency, clogged converter performance, sluggish acceleration, or increased fuel consumption. Built to help restore smoother exhaust flow and engine performance.
✓PREMIUM MATERIAL & KIT: Built with a 409 stainless steel body, Q235 steel flanges, and ceramic substrate with Pt, Rh, and Pd loading. Includes 1 65mm clamp, 1 outlet gasket, 1 steel ring, 3 12# fine-thread cap studs, 3 washers, and 3 nuts.