The Supertech dual valve spring for Nissan VG30DE and VG30DET engines is listed as a spring unit specified for those VG30 applications. Offered for the VG30 naturally aspirated and turbo variants, this dual spring is sold to match the Nissan VG30DE/VG30DET engines. The listing presents the product as the spring component for the VG30 engine family.
Supertech Nissan VG30DE/VG30DET Dual Valve Spring - Spring