Cobb Lightweight Main Pulley WRX 2002-2014 / STI 2004-2017
The Cobb Lightweight Main Pulley is CAD designed and CNC machined from Billet 6061-T6 Aluminum. Anodized in black and ready to withstanding the toughest of conditions under the hood.
Replacing the factory main pulley, the lightweight unit improves acceleration by reducing the rotational mass of the stock unit by as much as 4lbs.
- Billet 6061-T6 construction
- Anodized in Black
- Stock diameter
- Reduce rotational mass by 4 lbs
- Pulley weight = 1.2 lbs