Cobb Lightweight Main Pulley 15-21 Subaru STI
Part Number: 300102
EMISSIONS
This part is not an emissions-related part and therefore can be used on Emission Controlled Vehicles.
DESCRIPTION
The pulley comes specifically maintaining the stock diameter so as to not under drive and cause electrical woes for the owner, as well as maintaining the stock drive belt surface to make for a quick and easy install by even the most novice of owners. Pulley weight is 1.2lbs.
WHY?
The COBB Tuning Lightweight Main Pulley is CAD designed and CNC machines from Billet 6061-T6 and anodized to withstanding the toughest of under engine conditions. Replacing the factory main pulley, the lightweight unit improves acceleration by reducing the rotational mass of the stock unit by as much as 4lbs.
FEATURES
Subaru Lightweight Main Pulley
Billet 6061-T6 Construction
Anodized in Black
Stock Diameter
Reduce Rotational Mass by 4 lbs Over Stock
Pulley Weight = 1.2 lbs