The Supertech dual valve spring sold for Toyota 2JZ-GE is specified for drag racing use only and is offered as a single piece for dedicated race applications. Intended where racing-spec springing is required, the product provides a spring option for 2JZ-GE heads used in drag-only builds and should be selected when that specific, competition-focused application is intended.
Supertech Toyota 2JZ-GE (Drag Racing Only) Dual Valve Spring - Single (Drop Ship Only)