This exhaust manifold is a perfect fit for your GM truck with a 5.3L engine. It is made by Dorman, a reputable brand known for producing high-quality car parts. The manifold is designed to withstand the harsh conditions of your vehicle's exhaust system, ensuring long-lasting durability and reliability. With the manufacturer part number 674-522, this exhaust manifold is a great replacement part for GM trucks produced from 2001 to 1999. It is easy to install and is designed to improve the performance of your vehicle's exhaust system. If you're looking for a quality exhaust manifold for your GM truck, this Dorman part is a great choice.
Ordered for a 2004 Chevy Tahoe Z71 5.3L Flex and it was a perfect fit. No issues with installation as it bolted right up in place of original manifold.