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Make 4 interest-free payments of $164.01 fortnightly and receive your order now. More info
Pulley Kit
In some vehicle applications additional performance benefits are available at high RPM by underdriving the accessories (slowing them down), which reduces the parasitic load on the engine. All underdriven kits are thoroughly tested to ensure that the benefit comes without compromising the accessory performance
3-piece underdrive pulley kit (Crank, alternator & power steering pulleys & required bel
Subaru Suits WRX/STi MY08-14, Liberty GT MY03-12, Forester XT MY09-12)
Engine Under Drive Pulley Kit
Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included items. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
Pulley Kits, 3 Piece, Underdrive, Crank, Alternator, Power Steering Pulley, WRX/STi 2008-20, Liberty GT 2003-12, Forester XT 2009-12, Kit
Go Fast Bits lightweight underdrive pulley kits are made from aircraft-grade 6061 T-6 aluminum, anodized black for a stealthy appearance with superior wear resistance, and lightened to offer faster acceleration through significant weight reduction. GFB pulley kits are designed to improve acceleration by reducing the rotational mass (inertia) on the crankshaft as well as parasitic loads from the driven accessories. The effect is similar to a lighter flywheel, and the engine feels livelier and more willing to rev. Concerned about possible adverse effects of lightweight pulleys and underdriving? Rest assured GFB has done their homework. The underdrive ratios have been optimized to ensure there are no adverse effects on the performance of the accessories, and while it is true that some engine types do suffer harmonic issues from lightweight pulleys, GFB steers clear of those. Go Fast Bits kits are thoroughly application tested and do not cause engine damage in the short or long term.
UPC | 9328022002415 |
Brand | Go Fast Bits |
Notes | Fits all models of EJ engine where the A/C has a stretch fit belt rather than using a tensioner. |
Quantity | Sold as a kit. |
Part Type | Pulley Kits |
Product Line | Go Fast Bits Lightweight Underdrive Pulley Kits |
Pulley Style | Serpentine |
Belt Included | Yes |
Pulley Finish | Black anodized |
Pulley Material | Billet aluminum |
Pulley Set Style | Performance ratio |
Hardware Included | No |
Idler Cover Included | No |
Alternator Fan Included | No |
Idler Brackets Included | No |
Idler/Tensioner Included | No |
Alternator Pulley Grooves | 6-groove, serpentine |
Crankshaft Pulley Grooves | 6-groove, serpentine |
Alternator Pulley Included | Yes |
Crankshaft Pulley Included | Yes |
Manufacturer's Part Number | 2014 |
Water Pump Pulley Included | No |
Alternator Brackets Included | No |
Power Steering Pulley Grooves | 6-groove, serpentine |
Water Pump Nose Cone Included | No |
Alternator Nose Cover Included | No |
Crankshaft Nose Cover Included | No |
Power Steering Pulley Included | Yes |
Air Conditioning Cover Included | No |
Air Conditioning Pulley Included | No |
Power Steering Brackets Included | No |
Air Conditioning Bracket Included | No |
GFB 08+ WRX/STi / 09+ Forester / 03-09 LGT 3 pc Underdrive/Non-Underdrive Pulley Kit | ||||
---|---|---|---|---|
Year Range | Make | Model | Submodels | Region |
2009-2013 | Subaru | Forester | XT Limited, XT, XT Premium, XT Touring | US |
2008-2014 | Subaru | Impreza | WRX, WRX STI, 2.5 GT, WRX Premium, WRX Limited, WRX STI Special Edition, WRX STI Limited | US |
2003-2009 | Subaru | Legacy | GT, L, L SE, L 35th Anniversary, i, Limited, GT Limited, 2.5i, GT spec.B, 2.5i Special Edition, 2.5i Limited, 3.0 R Limited, 3.0 R | US |
2015-2020 | Subaru | WRX | Base, Premium, Limited | US |
2015-2020 | Subaru | WRX STI | Base, Limited, Launch Edition, Series.HyperBlue, Type RA, S209 | US |
Please note that this information serves as a fitment guide only. For specific fitment questions or clarifications, please contact us, as manufacturers may introduce variations and modifications during model year or regional revisions. While we strive to provide accurate data, fitment details may vary by region; therefore, compatibility outside the listed region and submodel variant cannot be guaranteed.
Application Data | |
---|---|
Make | SUBARU |
Model | IMPREZA |
Submodel | WRX |
Beginning Year | 2008 |
Ending Year | 2014 |
Engine Type | H4 |
Liter | 2.5 |
CC | 2458 |
Engine Family | Subaru 4-cylinder |
Engine Size | 2.5L/2458cc |
Application Notes | Aspiration: Turbocharged, Fuel Type: GAS |
Make | SUBARU |
Model | IMPREZA |
Submodel | WRX STI |
Beginning Year | 2008 |
Ending Year | 2014 |
Engine Type | H4 |
Liter | 2.5 |
CC | 2458 |
Engine Family | Subaru 4-cylinder |
Engine Size | 2.5L/2458cc |
Application Notes | Aspiration: Turbocharged, Fuel Type: GAS |
Make | SUBARU |
Model | WRX |
Submodel | BASE |
Beginning Year | 2015 |
Ending Year | 2020 |
Engine Type | H4 |
Liter | 2.0 |
CID | 122 |
CC | 1998 |
Engine Family | Subaru 4-cylinder |
Engine Size | 2.0L/1998cc |
Application Notes | Aspiration: Turbocharged, Fuel Type: GAS |
Pulley Kit
In some vehicle applications additional performance benefits are available at high RPM by underdriving the accessories (slowing them down), which reduces the parasitic load on the engine. All underdriven kits are thoroughly tested to ensure that the benefit comes without compromising the accessory performance
3-piece underdrive pulley kit (Crank, alternator & power steering pulleys & required bel
Subaru Suits WRX/STi MY08-14, Liberty GT MY03-12, Forester XT MY09-12)
Engine Under Drive Pulley Kit
Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included items. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.
Pulley Kits, 3 Piece, Underdrive, Crank, Alternator, Power Steering Pulley, WRX/STi 2008-20, Liberty GT 2003-12, Forester XT 2009-12, Kit
Go Fast Bits lightweight underdrive pulley kits are made from aircraft-grade 6061 T-6 aluminum, anodized black for a stealthy appearance with superior wear resistance, and lightened to offer faster acceleration through significant weight reduction. GFB pulley kits are designed to improve acceleration by reducing the rotational mass (inertia) on the crankshaft as well as parasitic loads from the driven accessories. The effect is similar to a lighter flywheel, and the engine feels livelier and more willing to rev. Concerned about possible adverse effects of lightweight pulleys and underdriving? Rest assured GFB has done their homework. The underdrive ratios have been optimized to ensure there are no adverse effects on the performance of the accessories, and while it is true that some engine types do suffer harmonic issues from lightweight pulleys, GFB steers clear of those. Go Fast Bits kits are thoroughly application tested and do not cause engine damage in the short or long term.
UPC | 9328022002415 |
Brand | Go Fast Bits |
Notes | Fits all models of EJ engine where the A/C has a stretch fit belt rather than using a tensioner. |
Quantity | Sold as a kit. |
Part Type | Pulley Kits |
Product Line | Go Fast Bits Lightweight Underdrive Pulley Kits |
Pulley Style | Serpentine |
Belt Included | Yes |
Pulley Finish | Black anodized |
Pulley Material | Billet aluminum |
Pulley Set Style | Performance ratio |
Hardware Included | No |
Idler Cover Included | No |
Alternator Fan Included | No |
Idler Brackets Included | No |
Idler/Tensioner Included | No |
Alternator Pulley Grooves | 6-groove, serpentine |
Crankshaft Pulley Grooves | 6-groove, serpentine |
Alternator Pulley Included | Yes |
Crankshaft Pulley Included | Yes |
Manufacturer's Part Number | 2014 |
Water Pump Pulley Included | No |
Alternator Brackets Included | No |
Power Steering Pulley Grooves | 6-groove, serpentine |
Water Pump Nose Cone Included | No |
Alternator Nose Cover Included | No |
Crankshaft Nose Cover Included | No |
Power Steering Pulley Included | Yes |
Air Conditioning Cover Included | No |
Air Conditioning Pulley Included | No |
Power Steering Brackets Included | No |
Air Conditioning Bracket Included | No |
GFB 08+ WRX/STi / 09+ Forester / 03-09 LGT 3 pc Underdrive/Non-Underdrive Pulley Kit | ||||
---|---|---|---|---|
Year Range | Make | Model | Submodels | Region |
2009-2013 | Subaru | Forester | XT Limited, XT, XT Premium, XT Touring | US |
2008-2014 | Subaru | Impreza | WRX, WRX STI, 2.5 GT, WRX Premium, WRX Limited, WRX STI Special Edition, WRX STI Limited | US |
2003-2009 | Subaru | Legacy | GT, L, L SE, L 35th Anniversary, i, Limited, GT Limited, 2.5i, GT spec.B, 2.5i Special Edition, 2.5i Limited, 3.0 R Limited, 3.0 R | US |
2015-2020 | Subaru | WRX | Base, Premium, Limited | US |
2015-2020 | Subaru | WRX STI | Base, Limited, Launch Edition, Series.HyperBlue, Type RA, S209 | US |
Please note that this information serves as a fitment guide only. For specific fitment questions or clarifications, please contact us, as manufacturers may introduce variations and modifications during model year or regional revisions. While we strive to provide accurate data, fitment details may vary by region; therefore, compatibility outside the listed region and submodel variant cannot be guaranteed.
Application Data | |
---|---|
Make | SUBARU |
Model | IMPREZA |
Submodel | WRX |
Beginning Year | 2008 |
Ending Year | 2014 |
Engine Type | H4 |
Liter | 2.5 |
CC | 2458 |
Engine Family | Subaru 4-cylinder |
Engine Size | 2.5L/2458cc |
Application Notes | Aspiration: Turbocharged, Fuel Type: GAS |
Make | SUBARU |
Model | IMPREZA |
Submodel | WRX STI |
Beginning Year | 2008 |
Ending Year | 2014 |
Engine Type | H4 |
Liter | 2.5 |
CC | 2458 |
Engine Family | Subaru 4-cylinder |
Engine Size | 2.5L/2458cc |
Application Notes | Aspiration: Turbocharged, Fuel Type: GAS |
Make | SUBARU |
Model | WRX |
Submodel | BASE |
Beginning Year | 2015 |
Ending Year | 2020 |
Engine Type | H4 |
Liter | 2.0 |
CID | 122 |
CC | 1998 |
Engine Family | Subaru 4-cylinder |
Engine Size | 2.0L/1998cc |
Application Notes | Aspiration: Turbocharged, Fuel Type: GAS |