Description
If you’re running your engine hard—whether on the track or in sustained high-RPM conditions—OEM valves and springs become the weak link. The PROX 28.SES4335-1 Kit replaces them with nitrided steel valves and premium chrome vanadium springs engineered to handle the thermal stress and mechanical demands of performance driving without accelerated wear. Install it using your existing retainers and seals for a straightforward bolt-on upgrade that adds reliability where it matters most.
- Nitrided steel valves
- Increased durability
- Reduced wear rates
- Chrome vanadium springs
- High-RPM rated
- Stronger spring load
- OEM-compatible installation
- Intake or exhaust options
- Uses existing retainers
- MPN: 28.SES4335-1
