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..
Features:
MLS Stainless Steel Design
2-Bolt Design w/ 3.78" Bolt Spacing
2-1/2" Diameter Center Hole
2 Pieces Per Package
Fits Hooker Cast Exhaust Manifolds w/ 2.5" Outlet - part number 8502HKR
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