The Supertech dual valve spring kit for the BMW S54 24-valve 3.2L engine is supplied as matched inner and outer springs for each valve in S54 heads. This kit is intended when dual springs are required for greater margin against float or to replace worn components during rebuilds. It fits applications that call specifically for S54 dual-spring configurations.
Supertech BMW S54 24V 3.2L Dual Valve Spring Kit