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GFB 08+ WRX/STi / 09+ Forester / 03-09 LGT 3 pc Underdrive/Non-Underdrive Pulley Kit
GFB 08+ WRX/STi / 09+ Forester / 03-09 LGT 3 pc Underdrive/Non-Underdrive Pulley Kit
GFB 08+ WRX/STi / 09+ Forester / 03-09 LGT 3 pc Underdrive/Non-Underdrive Pulley Kit
GFB 08+ WRX/STi / 09+ Forester / 03-09 LGT 3 pc Underdrive/Non-Underdrive Pulley Kit
GFB 08+ WRX/STi / 09+ Forester / 03-09 LGT 3 pc Underdrive/Non-Underdrive Pulley Kit
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GFB 08+ WRX/STi / 09+ Forester / 03-09 LGT 3 pc Underdrive/Non-Underdrive Pulley Kit

Go Fast Bits
GFB2014
In stock
26
Pulleys - Crank, Underdrive
$350.00 $315.00
$315.00

GFB 08+ WRX/STi / 09+ Forester / 03-09 LGT 3 pc Underdrive/Non-Underdrive Pulley Kit
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.
Installation Instructions


This Part Fits:

Year Make Model Submodel
2009 Subaru Forester XT
2009-2010 Subaru Forester XT Limited
2010-2013 Subaru Forester XT Premium
2011-2013 Subaru Forester XT Touring
2009-2010 Subaru Impreza 2.5 GT
2008-2014 Subaru Impreza WRX
2010-2014 Subaru Impreza WRX Limited
2009-2014 Subaru Impreza WRX Premium
2008-2014 Subaru Impreza WRX STI
2011-2014 Subaru Impreza WRX STI Limited
2010 Subaru Impreza WRX STI Special Edition
2006-2009 Subaru Legacy 2.5i
2007-2009 Subaru Legacy 2.5i Limited
2007-2009 Subaru Legacy 2.5i Special Edition
2009 Subaru Legacy 3.0 R
2008-2009 Subaru Legacy 3.0 R Limited
2003-2006 Subaru Legacy GT
2005,2007-2009 Subaru Legacy GT Limited
2006-2009 Subaru Legacy GT spec.B
2005 Subaru Legacy i
2003-2004 Subaru Legacy L
2004 Subaru Legacy L 35th Anniversary
2003 Subaru Legacy L SE
2005 Subaru Legacy Limited
2015-2020 Subaru WRX Base
2015-2020 Subaru WRX Limited
2015-2020 Subaru WRX Premium
2015-2020 Subaru WRX STI Base
2015 Subaru WRX STI Launch Edition
2015-2020 Subaru WRX STI Limited
2020 Subaru WRX STI S209
2016 Subaru WRX STI Series.HyperBlue
2018 Subaru WRX STI Type RA
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