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

Go Fast Bits
GFB2221
In stock
2
Pulleys - Crank, Underdrive
$62.00 $55.80
$55.80

GFB 13+ Subaru BRZ / 13+ Scion FR-S Lightweight Alternator Pulley
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
2013-2020 Subaru BRZ Limited
2013-2019 Subaru BRZ Premium
2015 Subaru BRZ Series.Blue
2019 Subaru BRZ Series.Gray
2016 Subaru BRZ Series.HyperBlue
2017 Subaru BRZ Series.Yellow
2018,2020 Subaru BRZ TS
2017-2020 Toyota 86 Base
2018-2020 Toyota 86 GT
2020 Toyota 86 Hakone Edition
2017 Toyota 86 Special Edition
2019 Toyota 86 TRD Special Edition
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