Description
Exhaust gasket failure leads to costly leaks, lost horsepower, and potential engine damage—especially under high-heat or high-boost conditions. The COMETIC EX657 is engineered to seal reliably across extreme temperature ranges, eliminating the risk of blow-outs even when over-torqued. Built with premium materials and U.S. manufacturing standards, this gasket delivers the durability serious racers and performance builders demand.
- Double-sided Viton® rubber coating
- Stainless steel construction
- Steel-tanged outer layer
- Armor-400 inner core
- Heat resistant to 1,800°F
- 4-stroke engine rated
- Resists blow-out/push-out
- Over-torque tolerant
- Made in the U.S.A.
- Application-specific design
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