Optimizes airflow, air density, continuous power & MPG. Honors the host vehicle & improves longevity. Total Power System for Towing & Work. Cut out turbo lag. Increase durability. Pickup/Excursion: Banks Stinger-Plus utilizes Quick-Turbo to cut out turbo lag and strengthen turbo performance. Best gains of +91 hp and +162 lb-ft torque deliver more guts when you need 'em, with 11 percent better fuel economy as you haul a trailer or big load. If you like all that pulling-muscle delivered with a kick, Stinger-Plus is an excellent choice. Test vehicle: 1999 F-350 crew cab dually, 2-wheel drive, 4R100 4-speed automatic trans. Towing combined vehicle weight: 20,000 lbs. Horsepower and torque measured at rear wheels. Fitment Notes: Some vehicle configurations require an extension kit for proper fit. 1999 Power Stroke variations: Ford trucks for model year 1999 fall into three categories: 1999, early 1999.5 and late 1999.5. It is important to know the specific model. Check the build date on the tag inside the driver's door, then match: 1999 model year (built prior to 1/99 with catalytic converter), Early 1999.5 model year (built prior to 1/99, no catalytic converter, intake manifold has 2 inch-diameter inlets), Late 1999.5 model year (built on or after 1/99, no catalytic converter, intake manifold has 3 inch-diameter inlets). 1999-2003 F-350 cab-and-chassis (no bed) trucks: If fuel tank is behind rear axle of the vehicle, use systems for F-450/550 trucks. Pickups other than standard-cab long-bed or extended-cab short-bed require Exhaust Extension Kit. Key Features: Optimizes airflow, air density, continuous power & MPG. Honors the host vehicle & improves longevity. Total Power System for Towing & Work. Gain up to +91 hp/+162 lb-ft. 11% more towing MPG. Increase durability. Cut out turbo lag. Cerakote Black tip

Genuine Banks Power. Part number 47521-B.

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WARNING: California Proposition 65 — this product can expose you to chemicals known to the State of California to cause cancer or reproductive harm.