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Cobb Lightweight Main Pulley
Improve acceleration and reduce rotational mass
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.
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.
Application Guide:
Make Model Years
Subaru WRX 2002-2014
Subaru STI 2004-2015
Subaru 2.5GT 2009-2010
Subaru Legacy GT 2005-2009
Subaru Legacy GT Spec B 2006-2009
Subaru Outback XT 2005-2009
Subaru Forester XT 2004-2013
