Mr. Gasket Exhaust Collector Gasket

Mr. Gasket Exhaust Collector Gaskets: Race-Proven Sealing Technology

When it comes to sealing the critical junction between exhaust headers and collectors, few names carry the authority of Mr. Gasket. Founded in 1964 by drag racer Joe Hrudka, the brand was literally born from the racetrack — while winning back-to-back National Hot Rod Championships in 1961 and 1962, Hrudka realized that faulty exhaust gaskets were a major stumbling block to many racers, and upon investigating the problem, he created the durable gasket that launched his company. That racing DNA is still embedded in every exhaust collector gasket Mr. Gasket produces today.

A Range Built for Every Build

What sets Mr. Gasket apart in the exhaust collector gasket category is the sheer breadth of material technologies available, each engineered for a specific combination of heat, pressure, and application demands:

• Standard (High-Temp Acrylic Blend): Manufactured from high-temperature composite exhaust material, these gaskets provide maximum torque retention to eliminate gasket failure and can be trimmed if necessary for modified port applications. Ideal for OE replacement, high-performance street, drag, and oval track racing.
• Ultra-Seal: Mr. Gasket Ultra-Seal exhaust gaskets are designed to improve the sealing of exhaust header flanges, incorporating a graphite-impregnated facing and a steel-expanded metal core that reinforces and increases their tensile strength — allowing the gaskets to conform to warped flanges without deteriorating or cracking under excessive heat and pressure. The expanded steel core provides stability and maximum torque retention, while the graphite facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head.
• Embossed Aluminum: Manufactured using "Dead Soft" aluminum, these exhaust gaskets conform easily to surface irregularities and create a tight, leak-proof seal — and they will not shrink, deteriorate, or blow out. They are reusable and well-suited for race, street, tow vehicles, and motor homes.
• CopperSEAL: Made from 0.043" solid copper and racetrack proven to eliminate exhaust leaks in top fuel dragsters, funny cars, and alcohol class racecars, these gaskets feature an embossed O-ring design to increase sealing pressure around the exhaust ports for a tight, leak-proof seal. This construction also makes CopperSEAL an excellent choice for turbo and extreme-heat builds.
• Multi-Layer Steel (MLS): MLS exhaust and header collector gaskets are designed for extreme cylinder pressures produced by high-horsepower, high-compression turbocharged, supercharged, and nitrous oxide injected engines. Manufactured from three stainless steel layers, they resist corrosion, will not burn through or push out, and the stress-formed inner and outer layer embossments act like springs that rebound under exhaust flange clamp load.

Engineered Details That Matter

A unique feature on many Mr. Gasket exhaust gasket applications is slotted end holes, which allow you to easily slide the gasket between the cylinder head and header flange after the end bolts have been started. Additionally, no gasket sealer is needed with the installation of Mr. Gasket Performance, Ultra-Seal, CopperSeal, Layered Aluminum, or MLS Embossed exhaust gaskets — a convenience that saves time during any build or rebuild. Now an important part of Holley Performance, Mr. Gasket continues to expand application coverage with more and more new products for race cars and muscle cars alike.

Whether you're building a weekend track car, refreshing a classic muscle car, or assembling a boosted street engine, Mr. Gasket's exhaust collector gasket lineup offers a precisely matched solution. Browse the full selection above and find the right gasket for your application.