Hastings SNH import performance ring sets help you achieve the chamber sealing, piston heat transfer, and oil consumption regulation you seek. They feature 1.0mm thick stainless steel nitride top rings, 1.2mm thick ductile iron Napier (2nd) rings, and 2.8mm thick oil rings with stainless steel nitrite rails and expander. They're available in multiple diameters to match your specific piston sizes. Keep your engine firing with the Hastings SNH import performance ring set designed for your import motor application.