Banks Power 99-04 Ford 6.8L Ext/Crew S/D Stinger System - SS Single Exhaust w/ Black Tip(1999 2004 6. 8L) An economical alternative to the PowerPack, Stinger works hard and plays hard. Rear wheel gains up to +35 hp and +42 lb ft, up to 5% more MPG. 1999 04 6. 8L SUPER DUTY PICKUP: Banks Stinger is an economical alternative to the PowerPack, producing rear wheel gains to +35 hp, +42 lb ft torque and 5% better mileage. Hauling a payload or big toy? Stinger has the substance to tackle many heavy duty jobs, and makes play time a lot more