GFB 13+ Subaru BRZ / 13+ Scion FR-S Lightweight Alternator Pulley - 2221

It might be hard to imagine how reducing the mass of a pulley makes a car go faster, but accelerating a heavy factory pulley from say 3000-7000 RPM in a second or two saps a measurable amount of torque. GFB Lightweight Pulleys reduce inertia by up to 85 percent, so most of the torque that used to accelerate the pulley can now be applied to the wheels.

This Part Fits:

Year	Make	Model	Submodel
2013-2016	Scion	FR-S	Base
2013-2017	Subaru	BRZ	Limited
2013-2017	Subaru	BRZ	Premium
2015	Subaru	BRZ	Series.Blue
2016	Subaru	BRZ	Series.HyperBlue
2017	Toyota	86	Base
2017	Toyota	86	Special Edition