The HKS Upgraded Valve SPG Step2 is a high-performance valve spring kit designed specifically for the Nissan RB26DETT engine. Constructed to improve valvetrain durability and responsiveness, these springs are engineered to support increased valve movement and higher RPM operation. The kit enhances engine stability during aggressive driving and high-rev conditions, making it suitable for both street performance and track applications. Built with quality materials, the springs help optimize valve control, reduce valve float, and improve overall engine efficiency, especially in high-performance setups.

Designed for Nissan RB26DETT engines, these valve springs are compatible with models from the early 1990s through the early 2000s, supporting high-revving builds and performance upgrades. They serve as a direct upgrade for stock springs, providing increased spring pressure and stability under demanding conditions. Ideal for enthusiasts seeking to maximize engine response and reliability, the kit is suitable for street, track, or racing environments. Installation is straightforward as a bolt-on upgrade, and the kit includes the necessary springs for a complete valvetrain enhancement.