Perrin Lightweight Crank Pulley Blue | 2002–2014 WRX / 2004–2021 STI / 2005–2009 Legacy / 2004–2013 Forester | PSP-ENG-100BL

The Perrin PSP-ENG-100BL lightweight crank pulley reduces rotational mass at the crankshaft for faster revs, sharper throttle response, and measurable performance gains. At just 1.2 lbs — 4 lbs lighter than the OEM pulley — the reduction in rotating mass is equivalent to removing over 100 lbs of vehicle weight.

Key Features

• Weighs just 1.2 lbs — 4 lbs lighter than the stock OEM crank pulley
• Rotating mass reduction equivalent to removing 100+ lbs of vehicle weight
• Machined from 6061-T6 billet aluminum for strength and light weight
• Precision-machined grooves sync tightly with all OEM and aftermarket belts
• Anodized blue finish with white Perrin logo

Vehicle Fitment

• 2002–2014 Subaru WRX
• 2004–2021 Subaru WRX STI
• 2005–2009 Subaru Legacy
• 2004–2013 Subaru Forester

Specs

• Weight: 1.2 lbs (4 lbs lighter than OEM)
• Material: 6061-T6 billet aluminum
• Finish: Anodized blue
• Part Number: PSP-ENG-100BL