The Supertech dual valve spring for Mitsubishi 4G63 2.0T DOHC is offered as a single unit and supplied via drop-ship. Specified for the 4G63 2.0T DOHC engine, this dual spring is listed individually for that Mitsubishi turbo application. The product note indicates single-piece sales and drop-ship fulfillment for the 4G63 2.0T DOHC fitment described in the listing.
Supertech Mitsubishi 4G63 2.0T DOHC Dual Valve Spring - Single (Drop Ship Only)