Ferrea Dual Valve Spring Kit for 99-00 Suzuki GSX 1300R Hayabusa

Ferrea Dual Valve Spring Kit for 99-00 Suzuki GSX1300R Hayabusa Upgrade valve control and engine performance with the Ferrea Dual Valve Spring Kit engineered specifically for the 1999–2000 Suzuki GSX1300R Hayabusa. Precision-manufactured from premium materials, this kit delivers improved durability, reduced valve float, and consistent spring pressure for aggressive street and track use. Direct fit: Designed to OEM specifications for the 99–00 GSX1300R — simple installation with no machining required. Dual spring design: Inner and outer springs provide superior control at high RPM, minimizing resonance and valve bounce. High-quality materials: Heat-treated alloy for long life, consistent spring rates, and resistance to sag. Performance benefits: Increased rev ceiling, improved throttle response, and enhanced reliability under demanding conditions. Ideal for modified engines: Perfect when running higher lift cams, forced induction upgrades, or aggressive tuning. Choose Ferrea for race-proven engineering and achieve reliable valve actuation on your Hayabusa. Fits: 1999–2000 Suzuki GSX1300R .