This Supertech +1mm oversize black-nitrided intake valve set is specified for the Mazda Miata 1.6L and includes eight valves. The +1mm dimension provides an oversize option for heads that have been reconditioned and require larger intake valves. Packaged as a complete eight-piece set, it addresses intake valve replacement across the engine when that oversize is specified.
Supertech Mazda Miata 1.6L Black Nitrided Intake Valve - +1mm Oversize - Set of 8