Tomioka Racing Lightweight Crank Pulley - 2002-2021 Subaru WRX / STI / 2005-2012 Subaru Legacy GT / 1998-2013 Subaru Forester XT PDM_steering-wheel-and-accessories Maintaining a safe Air/Fuel (A/F)

Maintaining a safe Air/Fuel (A/F) ratio throughout the power band

2-piece knob/collar design (for use with our collar/shaft assembly)

Why You Want This Part

5mm valve lift

Tomioka Racing Lightweight Crank Pulley - 2002-2021 Subaru WRX / STI / 2005-2012 Subaru Legacy GT / 1998-2013 Subaru Forester XT PDM_steering-wheel-and-accessories Maintaining a safe Air/Fuel (A/F)Tomioka Racing Lightweight Crank Pulley 2002 2021 Subaru WRX STI 2005 2012 Subaru Legacy GT 1998 2013 Subaru Forester XT Approximately 4 lbs Off the Factory Crank Pulley The Tomioka Racing Lightweight Crank Pulley removes approximately 4 lbs from the factory unit, reducing the rotational mass the engine must spin at the crankshaft. The reduction in rotational inertia allows the engine to rev more freely and respond more quickly to throttle inputs. CNC