1999 - 2004 6.8L SUPER - DUTY PICKUP Banks has the formula for building V - 10 muscle the stainless - steel PowerPack adds best gains of 56 hp, 67 lb - ft torque, and 7 more miles to the tank - full. A pair of bulletproof TorqueTube manifolds uncorks major torque for big hauling and climbing jobs. Banks optional electronic AutoMind engine - calibration module maximizes power while keeping a stern check on the air - to - fuel ratio, for safe exhaust temperatures and engine longevity. Vehicle is EGR - equipped (1999 models only) if there is a large hex fitting connecting steel tube to exhaust manifold on driver's side. To identify type of catalytic converter, locate flange between Y - pipe and cat converter Early style cat converter - - flange behind transmission cross - member. Late style cat converter - - flange in front of transmission cross - member. Systems do not fit 2005 (3 - valve) vehicles - - designated by a V in the 8th position of the VIN number. PowerPickle. Banks invented a ballistic flow device to overcome the problem that occurs where tubes join within a single collector (a dead zone that kills exhaust - gas velocity). The patented PowerPickle fills that void and utilizes the rotational firing order to maximize exhaust extraction. This detail - exclusive to Banks - captures exhaust - gas action and turns it into massive torque. Gasoline 6.8L (V - 10), 1999 - 05.Test vehicle 1999 Ford F - 350 crew cab dually, 6.8L Triton V - 10, 4R100 4 - speed automatic, 4.10 rear axle ratio, 7500 lbs solo weight, 20,000 lbs combined towing weight.Horsepower and torque measured at rear wheels.