It might be hard to imagine how reducing the mass of a pulley makes a car go faster, but accelerating a heavy factory pulley from say 3000-7000 RPM in a second or two saps a measurable amount of torque. GFB Lightweight Pulleys reduce inertia by up to 85 percent, so most of the torque that used to accelerate the pulley can now be applied to the wheels. Learn More

It might be hard to imagine how reducing the mass of a pulley makes a car go faster, but accelerating a heavy factory pulley from say 3000-7000 RPM in a second or two saps a measurable amount of torque. GFB Lightweight Pulleys reduce inertia by up to 85 percent, so most of the torque that used to accelerate the pulley can now be applied to the wheels. Learn More

For 1989-2018 5.9L and 6.7L Cummins performance engine builds above 700hp / 1,250 ft-lbs torque Fluidampr recommends damper installation with the Full Power Kit for secure mounting. Kit features textured finished torque plate with 5/8 hex head for barring engine, diamond impregnated friction washer, and heat treated high strength bolts from ARP. Use in conjunction with Fluidampr Cummins Drill Pin Kit (p/n 300002) for applications above 3,500rpm. Learn More