GFB Evo 4-9 Under-Drive Crank Pulley w/ Belt

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.

This Part Fits:

Year	Make	Model	Submodel
2003-2006	Mitsubishi	Lancer	Evolution
2015	Mitsubishi	Lancer	Evolution Final Edition
2008,2010-2015	Mitsubishi	Lancer	Evolution GSR
2005-2006,2008,2010-2015	Mitsubishi	Lancer	Evolution MR
2010-2011	Mitsubishi	Lancer	Evolution MR Touring
2005-2006	Mitsubishi	Lancer	Evolution RS
2006,2010	Mitsubishi	Lancer	Evolution SE
2009-2015	Mitsubishi	Lancer	Ralliart
2010-2011	Mitsubishi	Lancer	Ralliart Sportback