Mr. Gasket MLS Multi-Layer Steel Exhaust Header Gaskets

Mr. Gasket Multi-Layer Steel (MLS) Exhaust Header Gaskets are engineered for serious performance applications where standard composite gaskets fall short. Built to withstand the extreme cylinder pressures and exhaust temperatures generated by high-horsepower, high-compression, turbocharged, supercharged, and nitrous oxide-fed engines, this gasket line delivers professional-grade sealing integrity at every header flange connection.

Advanced Multi-Layer Steel Construction:

• Three-layer stainless steel design provides exceptional resistance to corrosion, heat, and exhaust gas erosion
• Will not burn through, blow out, or deteriorate under sustained high exhaust pressure or repeated thermal cycling
• Stress-formed embossments on the inner and outer layers act as mechanical springs, maintaining continuous and active sealing force throughout the combustion cycle
• Superior fastener torque retention over extended use and multiple heat cycles

Performance Benefits:

• Rebounds under exhaust flange clamp load to sustain constant sealing pressure between combustion cycles
• Accommodates differential thermal expansion between aluminum cylinder heads and steel exhaust components
• Eliminates the failure modes common to composite gaskets — including thermal cycling fatigue and material scrubbing
• Purpose-built for race engines, high-performance street builds, and all forced induction applications

Why Choose Mr. Gasket MLS Technology:

• Trusted by professional engine builders and performance enthusiasts for decades
• Available across a wide range of port configurations to cover popular domestic and import engine families
• Consistent, repeatable sealing performance from first installation through thousands of miles or race events
• Manufactured to meet the demands of the most extreme performance environments

When the job calls for a header gasket that won't let you down under maximum load, Mr. Gasket MLS Exhaust Header Gaskets deliver the leak-free reliability and long-term durability that demanding performance builds require. Select the correct part number for your specific application from the available variants in this product line.