Michigan Motorsports LS Multi-Layer Steel (MLSHeader Manifold Exhaust GasketDirect Replacement for GM 12617944High-Performance Seal for LS1 LS2 LS3 LS6 LQ4 LQ9 4. 8 5. 3 5. 7 6. 0 6. 2 Engines.

Ensure a leakfree, highperformance exhaust system with these Michigan Motorsports MultiLayer Steel (MLSExhaust Header Manifold Gaskets, engineered as a direct replacement for GM Part12617944. Designed to handle extreme heat, pressure, and highperformance demands, these gaskets provide longlasting durability and superior sealing for stock and aftermarket exhaust setups. Built to meet or exceed OEM specifications, these MLS gaskets feature a multilayer design that prevents exhaust leaks, warping, and blowouts, making them an essential upgrade for highperformance LS applications. Whether youre performing an LS swap, upgrading to aftermarket headers, or replacing wornout gaskets, this set ensures a secure fit and maximum exhaust flow. Compatible with a wide range of GM LSbased engines, including LS1, LS2, LS3, LS6, LQ4, LQ9, and more, these gaskets fit 4. 8L, 5. 3L, 5. 7L, 6. 0L, and 6. 2L engines, making them a versatile solution for stock and performance builds. Perfect for engine builders, mechanics, and LS enthusiasts, these MLS exhaust header manifold gaskets deliver OEMquality performance with raceready durability.