Brian Tooley Racing MLS LS Header Gasket Set (Pair) – BTR17944-2

Upgrade your GM LS exhaust sealing with the Brian Tooley Racing BTR17944-2 header gasket set. Sold in pairs, these multi-layer steel (MLS) gaskets feature 1.87″ round ports and precision laser-cut construction for leak-free performance. Direct replacement for GM part 12617944, they fit all Gen III/IV LS engines (LS1 through LS7), delivering durability and consistent clamping under extreme heat and boost. BTR Exhaust Header / Manifold Gasket   1.87 in Round Port   Multi-Layered Steel GM LS-Series   Pair