Ford 6.4L 08-10 Nozzle SET: 6 Hole 60% Over nozzle set, enough fuel to support 800-850 RWHP with supporting modifications. Intended for high performance use with modified turbo(s). Requires dual injection pumps & custom tuning. Recommend testing health of injectors prior to install of new nozzles. Sold as a matched set & includes set of copper washers.