Description
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
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