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Go Fast Bits Underdrive Pulley Kit ( Part Number:GFB 2014)

Go Fast Bits Underdrive Pulley Kit

MODEL # GFB 2014
Manufacturer Part # 2014

$301.91

MSRP: $335.45

24
hours
In stock! Ships same day
Qualifies for free shipping!


Description
This GFB Pulley Kit comes with the crank, alternator and power steering pulleys as well as the belt needed for install. Having large heavy pulleys spinning takes away power that is better spent moving the car. This kit takes care of that by replacing the crank pulley with a lighter version that underdrives the power steering and alternator yet leaves the A/C compressor spinning at normal speeds.

Stock Crank Pulley : 5.51lb (STI) / 4.63lb (WRX)
GFB Crank Pulley : .86lb

Stock Power Steering Pulley : .81lb
GFB Power Steering Pulley : .37lb

Stock Alternator Pulley : .36lb
GFB Alternator Pulley : .14lb

Total Mass for GFB Pulley Kit : 1.38lb
Total Mass for Stock Pulleys : 6.69lb (STI) / 5.81lb (WRX)
Mass Savings : 5.31lb (STI) / 4.43lb (WRX)

Alternator Underdrive : 16.5%
Power Steering Underdrive : 18%
A/C Underdrive : None
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RallySport Guarantee - 30 Days


Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.

Specifications

Brand: Go Fast Bits
Color: Black
Location: Crank, Alternator and Power Steering
Material: Aluminum
Pulley Ratio: Underdrive
Weight: Multiple
Belt Included: Yes

Mfgr. Warranty: 1 Year
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days


Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
RallySport Guarantee
  INSTALLATION INSTRUCTIONS

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RallySportDirect.com Reviews:

Impressive!
DannySTi 2 years ago
This kit will leave you astonished! It is super high quality and light weight... I had the perrin light weight installed on my 2008 STi and it was really good. I found the Go Fast Bits kit by accident and I kept thinking.... Hmm would 3 light weight pulleys be better than one? Sure is! Plus the quality and looks defineyely stands out. I love this kit, you'll feel the difference even going from one light weight pulley to this complete kit.. Now if you're in the market for a light weight pulley don't even look further.. this is the right kit to go with! Drive safe lol
Verified Purchase

Great Product
Starplatnium 3 years ago
Installed these on my 2014 Sti and noticed a difference. The car revs more smoothly.

Why do just 1 pulley when you can replace them all?
WesD 3 years ago
The GFB pulley kit replaces the Crank, PS, and Alt pulley's with lightweight aluminum units that are of the highest quality. The real benefit is weight savings and when I weighed them in comparison to their stock counterparts I confirmed RSD's findings of more than a 5lb total weight savings on my 2008 STi. Comes with belts and install instructions. Oh and the packaging is damn impressive too! Buy them now!

  • Q: Current tune   jjungling8905749 18 days ago

    Answer

    Will this Underdrive Pulley Kit effect a current pro tune on the car?


    • A: No it will not.


      Tyler A. 18 days ago
  • Q: installation  luckitiluc 2 years ago

    Answer

    how long should it takes to install all 3pulleys? and is it better to remove the bumper?


    • A: The install should typically take 1-2 hours and there is no need to remove the bumper.


      Brady R 1 year ago
  • Q: Alternator and Power Steering  cmcilroy35 2 years ago

    Answer

    Is there any downside to to under-driving the alternator and power steering by ~20% less. Will the alternator still put out enough to power my large stereo, amp, and 12" JL sub? Will steering be noticeably tougher at slow speeds? How do the downsides to this kit feel?


    • A: We are unable to confirm if it will work with your stereo system. Steering may be slightly noticeable at slower speeds but the side effects of the kit are pretty minimal. Please contact us with further questions.


      Tyler G. 2 years ago
    • A: This depends on the current draw of your amplifier. If your amplifier is begining to produce audible distortion or other undesirable power/distorion, you can add a capacitor to your system's power line to help prevent current drops to the amplifier and thereby stop undesirable distortion and noise. A capacitor is a good idea for an amplifier driving a subwoofer anyhow to smooth the powered delivered to the amplifier. Simply use a test light to fully charge the capacitor before connecting it to the power line directly, then connect to your amplifier.


      monkeyman 1 year ago
  • Q: fitting  luckitiluc 2 years ago

    Answer

    does this fit on a subaru sti 15?


    • A: This kit does fit the 2015 STI as per the application list on the left hand side of the page.


      Connor M. 2 years ago
  • Q: Harmonics?  MrFreeze 2 years ago

    Answer

    How will this pulley kit effect the harmonics with the engine?


    • A: Engine harmonics will not be negatively affected with this pulley kit.


      Zach G. 2 years ago
    • A: As Zach says, the engine harmonics are not an issue when using this pulley kit. There is more technical information on this topic available on our website: http://www.gfb.com.au/tech/faqs/21-pulley-kits/45-what-is-a-harmonic-balancer


      GFB 2 years ago
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