Description
A failing header gasket is a silent performance killer—exhaust leaks rob your LS1 of power, create unwanted noise, and allow heat to escape where it shouldn’t. The Mr. Gasket Ultra-Seal design uses a steel core laminate construction to withstand extreme combustion pressures and thermal cycling, ensuring a reliable seal that holds up under sustained high-RPM operation. If you’re running forced induction or aggressive tuning, a quality gasket isn’t optional—it’s mandatory.
- Exhaust header gasket
- Ultra-Seal technology
- 1.750″ round ports
- Steel core laminate
- GM LS-Series fitment
- Pair included
- Bolt-on installation
- MPN: 5964
