Go Fast Bits
GFB 04-10 WRX/STI 3 Piece Under-Drive Pulley Kit w/ Belts (Crank Alternator & Power Steering) Crank Pulley
SKU: gfb2010
Go Faster ? Add Lightness, GFB's Lightweight Pulley Kits offer sharper throttle response and faster acceleration by significantly reducing the rotating mass at the engine. Made from a single billet of 6061-T6 aluminium, then precision CNC machined to exacting tolerances, our pulley kits offer an exceptional bolt-on performance advantage without the need for supporting mods or tuning
Ships within 1-2 business days - free shipping
Overview
Go Faster ? Add Lightness, GFB's Lightweight Pulley Kits offer sharper throttle response and faster acceleration by significantly reducing the rotating mass at the engine. Made from a single billet of 6061-T6 aluminium, then precision CNC machined to exacting tolerances, our pulley kits offer an exceptional bolt-on performance advantage without the need for supporting mods or tuning
Features
- SHARPER THROTTLE RESPONSE AND "URGE", ENGINE FEELS MORE LIVELY AND WILLING TO REV, UP TO 85% ROTATING INERTIA REDUCTION, WILL NOT CAUSE ENGINE DAMAGE, NO NEGATIVE EFFECTS ON DRIVEN ACCESSORY PERFORMANCE
Installation (catalog file)
Files & media
Similar Items
Fitment notes (catalog)
Subaru 3-piece underdrive pulley kit (Crank, alternator & power steering pulleys & belts. Suits WRX/STi MY03-07, Forester XT MY03-08)
Summarized compatible vehicles also appear under Description → Fitment.
Detailed rows from our confirmed fitment index can be large (dozens to hundreds per part). Load them only when you need year/trim/engine-level links to Shop by Vehicle.