The Ferrea Single Valve Spring Kit for the Nissan TB48 (Part #KT4056) includes 24 high-performance valve springs designed for high RPM and boost applications.

The Ferrea Dual Valve Spring Kit for the Nissan TB48 (Part #S10114) includes 24 high-performance dual valve springs designed for turbocharged applications, offering enhanced valve control and durability.

Supertech Dual Valve Spring Kit for TB48 (SPRK-H1020-2024) is a high-performance set designed for high-RPM and racing use with up to 16mm lift.

The Ferrea Single Valve Spring TB48 (Set of 24) delivers high-performance valve control for Nissan TB48 engines, ideal for high-RPM applications.

The Ferrea Dual Valve Spring TB48 (Set of 24) delivers superior valvetrain control and durability for high-performance Nissan TB48 engines.

BC1250