Go Fast Bits Underdrive Pulley Kit - 2004-2007 Subaru WRX / 2004-2007 STI

Go Fast Bits Underdrive Pulley Kit - 2004-2007 Subaru WRX / 2004-2007 STI

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Go Fast Bits

Go Fast Bits Underdrive Pulley Kit - 2004-2007 Subaru WRX / 2004-2007 STI

Go Fast Bits Underdrive Pulley Kit - 2004-2007 Subaru WRX / 2004-2007 STI

Regular price $342.90 USD
Regular price $381.00 USD Sale price $342.90 USD
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HIGHLIGHTS:

  • Includes lighter crank, power steering, and alternator pullies
  • Improves the engine response by removing rotational mass
  • Nice black finish to improve the engine bay aesthetics 

Go Fast Bits Underdrive Pulley Kit


SPECS:

  • Includes crank pulley
  • Includes power steering pulley
  • Includes alternator pulley
  • Made using lightweight aluminum materials
  • Anodized black finish
  • Improves engine response
  • Increases faster revs
  • AC compressor will still operate at normal speeds
  • Includes new belts

 

IMPROVE THE ENGINE RESPONSE WITH LIGHTER PULLIES

The Go Fast Bits Underdrive Pulley Kit is a lightweight set of underdrive pullies that have been designed to help remove some rotational mass from your engine to improve the overall performance. The result is improved engine response, faster revs, along with improved power and performance. 

 

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Specification Value
Color Black
Location Crank, Alternator And Power Steering
Material Aluminum
Pulley Ratio Underdrive
Weight Multiple
Belts Included Yes
  • 5 stars: 1 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
K
K9_Tor
05 WRX Wagon

I bought these last week and put them on yesterday. For one, the weight of these is SIGNIFICANTLY lighter. Two, the response in accelleration is improved, especially in 1st-3rd. Quite happy with those pulled.

05 WRX Wagon build
Sti tmic
Sti blue injectors
Walboro fuel pump
Grimmspeed Turbo Inlet
Radian oil catch can
Grimmspeed ebcs
Vf48 Turbo
Invidia catted down pipe
Fujitsubo catback uppie
Perrin short ram intake
GFB pulleys
AccessPort
Tune by AntSpec