The Stage 4 package has become a popular choice for multiple motives, such as the utilization of "Hybrid" injectors that require much less high pressure oil than "A" Code Injector counterparts of similar size. Even a standard 17 degree HPOP can provide sufficient high pressure oil upon demand. This 80% nozzle will deliver more power than smaller nozzles, yet still maintain a mild idle and smoke control. This combination with KC300X 66/73, has been tried and tested to produce up to 525-550 RWHP. With attentive tuning and EGT gauges, owners can tow 7-10K lbs. Not recommended for heavy towing.
Must select correct year. Early 99 have different turbo and pedestal. Trucks with the Super Duty body style built before 12-06-1998 are usually early-99's, and ones built after this date are late-99's, also called 1999.5's.
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