GM LS Cast Iron Exhaust Manifolds w/2.5in Outlet

The HOOKER GM LS Cast Iron Exhaust Manifolds with 2.5-inch outlet are designed for LS engine builders looking for efficient exhaust scavenging without the need for custom fabrication. These manifolds are suitable for various applications, including street engines, weekend warriors, and vintage vehicle restorations.

Constructed from cast iron, these manifolds maximize exhaust gas flow from all eight cylinders while ensuring durability and structural integrity under high temperatures. The one-piece cast design eliminates potential leak points, and the 2.5-inch outlet diameter is compatible with most LS exhaust packages and aftermarket downpipes, optimizing collector velocity.

These manifolds are particularly beneficial for LS engine swap enthusiasts, street rod builders, and performance tuners who require reliable and leak-free performance within factory or bolt-on modification constraints. Their robust design provides the necessary rigidity and thermal mass for serious builds.