Mitsubishi Evolution Under-Drive Crank Pulley - Go Fast Bits - GFB Evo 4-9 - 96-07. This lightweight, underdriven crank pulley sharpens throttle response and helps your Evo 4-9 accelerate more eagerly.

Machined from a single billet of 6061-T6 aluminum with precision CNC tolerances, the GFB pulley trims rotating mass compared to the factory unit. By slightly underdriving accessories at high rpm, it reduces parasitic load while maintaining accessory function. Expect a noticeable increase in engine willingness to rev thanks to an inertia reduction of up to 85% versus the stock pulley. It is a direct bolt-on and includes the correctly sized drive belt; no tuning is typically required.

Features

• Fits Mitsubishi Evolution 4-9 (1996-2007)
• 6061-T6 billet aluminum, precision CNC machined
• Underdrive design reduces accessory load at high rpm
• Up to 85% rotating inertia reduction vs factory pulley
• Includes correctly sized drive belt; bolt-on install

Ready to tailor your Evo’s response for street or track use? Call us with any questions at 512-982-9393 (TX) or 562-981-6800 (CA). We have locations in Austin, Texas and the Los Angeles, California area offering installation and customization services.

Buying multiple items? Contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov