Shop GMC Universal exhaust collector & GMC Intake manifold. Find GMC Exhaust manifold kit. Discover GMC Exhaust manifold gasket. Order GMC Manifold. Maintaining the exhaust manifold of your GMC vehicle is crucial for optimal performance and longevity. Regular inspection for cracks or leaks is essential, as these are clear indicators that a replacement may be necessary. To extend the lifespan, ensure all mounting bolts are tight and use heat-resistant sealants when needed. When selecting a new exhaust manifold, consider cast iron for durability or stainless steel for superior heat resistance. Installation is straightforward with the right tools, but always adhere to the manufacturer's torque specifications to prevent warping. With our diverse range of high-quality options, our online store simplifies finding the perfect exhaust manifold to enhance your GMC's efficiency and power.