Mr. Gasket 4888G - Exhuast Manifold Collector Gaskets - MLS - 2.5"

Hole Diameter: 2.5", Bolt Spacing: 3.78", Bolt Hole: 3/8" 2-bolt hole. Multi-Layered Steel (MLS) header collector gaskets are designed for extreme cylinder pressure produced by high horsepower-high compression turbo-charged, supercharged & nitrous oxide engines. Manufactured from three stainless steel layers, resists corrosion, will not burn through or push out & maintains maximum fastener torque retention. Stress formed inner and outer layer embossments act like springs that rebound under exhaust flange clamp load. Applications: Dynomax, Flowtech, Hedman, Hooker Headers, etc..