lightened underdrive crank pulley. This underdrive crank Pulley will fit All 1992-1999 Mitsubishi 3000GT/Stealth 3.0 Liter DOHC Turbo and Non-Turbo,200-2002 Mitsubishi Eclipse 3.0 SOHC and 2000-2002 Mitsubishi DIAMANTE 3.0 Liter DOHC,CFR crankshaft pulleys, which are CNC-machined from the lightest, most durable materials possible; 6061-T6 aluminum billet. After each pulley is manufactured, they are thoroughly tested for balance and strength through quality control before each product is to be shipped. CFR pulleys are designed to give you the best performance. By reducing the stock pulley weight, we were able to free up wasted energy and turn it into horsepower and throttle response gains about 8-15 horsepower/torque on normally aspirated engines. Dyno and track proven to increase hp and torque, our pulleys are developed for track and everyday driving. Higher gains can be realized on vehicles that are modified. The stock Crank Pulleys 7LB CFR Performance Crank pulleys 1.66LB/OZ. The pulley will come with the instructions. Available in polished and anodized colors (red, blue, black, gold, purple)