Dual valve springs set OM606 OM612 OM628 OM648 Mercedes diesel NJPerformance

Performance dual valve springs set Mercedes. The set prevents valve float under high boost pressures due to springs greater stiffness compared to the OEM and dual spring design. Direct fittment and require no machining. The small spring has a reverse winding, which allows safe lifting of the working. Boost pressure as you want (tested at […]