The included BD ProForce Torque Converter features a much stronger billet forged front cover and an enhanced-stall cast aluminum stator. It's designed for improved efficiency, durability, and low-RPM response in modified trucks. The converter uses an 11.625-inch dual-clutch setup. — The ProForce converter is a significant upgrade over the stock unit, built to handle the demands of towing and performance applications up to 550 flywheel horsepower. The most critical improvement is the move from a weak, stamped factory cover to a CNC-machined billet forged steel front cover, which eliminates flex and potential cracking. Inside, BD's exclusive "Enhanced Stall" cast aluminum stator improves fluid dynamics for better low-speed response and torque transfer. For durability, the turbine fins are furnace-brazed to prevent them from bending or breaking under high stress, and new piston damper springs are installed to handle increased shock and load over the long term.