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Banks engineers dramatically improved the V-10s airflow and optimized engine efficiency. Best gains: +53 hp and +69 lb-ft, and 7 percent more MPG. Although the 6.8L V-10 Triton has two more cylinders than Fords discontinued 7.5L V-8, its nominally 10 percent smaller capacity makes optimal engine efficiency critical to power production. If theres one thing Banks engineers know, its that engine airflow is the key to efficiency and power. That expertise earned Banks the record for Worlds Fastest Motorhome: a PowerPacked Ford 6.8L V-10 Class-C Chinook that blasted past General Motors record at 99.7 mph! Banks stainless-steel PowerPack unleashes best gains of +53 hp, +69 lb-ft torque, and 7 percent more MPG. Important: Some vehicle configurations require an extension kit for proper fit. Please note: Does not fit 2004 and later Fleetwood Powerplatform and National RV-Duraframe models. Motorhome Power. Gasoline: Ford 6.8L (V-10), 97-02. Test vehicle: 1999 Fleetwood Pace Arrow Vision. Description: 35-foot with tag axle. Engine: 6.8L Triton V-10, rated at 275 hp. Transmission: 4R100. Rear axle ratio: 4.10. Horsepower and torque measured at rear wheels. Vehicle is EGR-equipped (1999 models only) if a large threaded fitting is present on top of second port of drivers side exhaust manifold. Class-C motorhome is Super-Duty (E-450) if catalytic converter inlet has slip connection. Class-C motorhome is E-350 if catalytic converter inlet has 3-bolt flange. Exhaust extension kit required for longer wheelbases. Measure wheelbase length from center front wheel to center drive wheel. 2004 and later Fleetwood-Powerplatform and National RV-Duraframe models - product does not fit.