GrimmSpeed Gates Stretch Belt Pulley Adapter 2008-2014 WRX / 2008-2021 STI
The GrimmSpeed Gates Stretch Belt Pulley Adapter which has been designed to be used specifically with the Gates Stretch Belt Kit with the GrimmSpeed Crank Pulley.
Note: This kit is not guaranteed work with other types of aftermarket crank pulleys, and is designed to be used for with the GrimmSpeed pulley only.