Description
Primary clutch engagement and peak RPM performance depend on precise spring tuning—and the EPI SDPS-3 gives you full control over both. Whether you’re chasing incremental gains on the dyno or fine-tuning for specific track conditions, this adjustable primary spring lets you dial in the exact engagement curve your engine demands. Built with tight tolerances and durable materials, it delivers repeatable results without compromise.
- Adjustable engagement settings
- Tunable peak RPM performance
- Premium material construction
- ±5% tolerance specification
- Bolt-on installation
- Professional and DIY-friendly
- MPN: SDPS-3
