Holley is pleased to announce the release of Hays Twister Full Race Torque Converters for GM 6L80E 6-speed automatic transmissions. Designed specifically for blown, nitrous, and turbocharged trans-brake applications and strong enough to withstand the punishment of 1000-horsepower engines, they're available in four different stall-speed ranges: 2400-2800, 2800-3200, 3200-3600, and 3600-4200. They're internally welded (not brazed) for longer life and greater consistency and, in select areas, spray-welded. Heavy-duty Torrington bearings and carefully selected stators with high-flow vents and channels promote cooling, a custom-designed anti-balloon plate prevents converter swelling, and each one is inspected during every step of assembly and hand-built.