TOMEI VALVE SPRING For SUBARU EJ 163057Brand TOMEI Product Number 163057 Compatible Car SUBARU Compatible Engine EJ Product Description High quality designed springs is required to transfer the exact movement of the camshaft to the valves at high engine speeds on high performance engines. The TOMEI products are always engineered with precision in mind to suit the user's needs. So with this in mind careful choices in material selection is made with surface coating and other technologies.