Description
If you’re pushing your engine to its limits, OEM valves and springs won’t cut it. The PROX 28.SIS2414-2 Kit replaces those weak factory components with nitrided steel valves and premium chrome vanadium springs engineered to handle extreme RPM and sustained high-load conditions without accelerated wear. This is the upgrade serious racers and high-performance builders choose when reliability at the edge matters.
Technical Specifications:
- Nitrided steel valves
- Reduced wear resistance
- Chrome vanadium springs
- High-RPM rated
- Increased spring pressure
- OEM retainer compatible
- OEM base compatible
- OEM seal compatible
- Bolt-on installation
- Intake or exhaust
- MPN: 28.SIS2414-2
