The Supertech dual valve spring kit for VW 1.8L/2.0L 8V engines with 7mm valve stems is a race-only dual-spring set specified for 7mm stem applications. Offered as a kit for those VW 8-valve engines, it is labeled for race use only and intended where a dual-spring arrangement and 7mm stem compatibility are required. The product notes the 7mm stem specification and race-only designation.
Supertech VW 1.8L/2.0L 8V 7mm Stem (Race Only) Dual Valve Spring Kit (7mm stem)