Powerflex
Subaru Impreza GR, GH (2007 - 2011) & WRX + STI (2007 - 2014) Suspension Bushes
Subaru Impreza GR, GH (2007 - 2011) & WRX + STI (2007 - 2014) Suspension Bushes
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Powerflex suspension bushes for the Subaru Impreza GR, GH (2007 - 2011) & WRX + STI (2007 - 2014) are polyurethane replacements for the original rubber bushes. They are available in Road Series and Black Series, with a fitting diagram showing every bush position and part number.
Overview
Rubber suspension bushes soften, split and let the suspension move out of position as they age. Powerflex polyurethane bushes control that unwanted flex, which keeps the Subaru Impreza GR, GH (2007 - 2011) & WRX + STI's suspension geometry where it should be. Powerflex says this prolongs tyre life, improves performance and increases safety on the road. Every bush is made in-house by Powerflex, a UK manufacturer formed in 1996.
Key features
- Polyurethane replacements for the original rubber suspension bushes
- Reduces unwanted suspension flex for sharper, more consistent handling
- Helps maintain suspension geometry and prolong tyre life
- Road Series compounds matched to each bush position, from 65A to 95A
- Black Series 95 Shore A compound for track and motorsport
- Fitting diagram for each range showing every bush position
- Lifetime warranty on road-use parts (Black Series and track use excluded)
Specification
- Make: Subaru
- Vehicle: Subaru Impreza GR, GH (2007 - 2011) & WRX + STI (2007 - 2014)
- Years: 2007 - 2014
- Ranges available: Road Series and Black Series
- Material: polyurethane
- Fitting diagram: included for each range
- Warranty: lifetime on Road Series for road use; Black Series excluded
Fitment notes
Road Series
- PFF69-504 fits Hydraulic Power Steering racks only - not Electric.
- PFF69-702 and PFF69-502G will not fit the aluminium STi wishbone with pillow-ball mount, for vehicles 2011 on.
- PFR69-510GBLK and PFR69-511GBLK allow +/- 1.0 deg of on-car camber adjustment.
- PFR69-620 and PFR69-621 fit WRX/STI models 2011-2014. PFR69-514 are used for all other models.
Black Series
- PFF69-504 fits Hydraulic Power Steering racks only - not Electric.
- PFF69-702BLK and PFF69-502GBLK will not fit the aluminium STi wishbone with pillow-ball mount, for vehicles 2011 on.
- PFR69-510GBLK and PFR69-511GBLK allow +/- 1.0 deg of on-car camber adjustment.
- PFR69-620BLK and PFR69-621BLK fit WRX/STI models 2011-2014. PFR69-514BLK are used for all other models.
Heritage Collection
Who it's for
Road Series for everyday and fast-road driving; Black Series for track days, sprints, hill climbs and circuit racing. It suits owners of the Subaru Impreza GR, GH (2007 - 2011) & WRX + STI who want tighter, more precise handling and bushes that outlast rubber. Check the fitting diagram and your vehicle details before you order.
Frequently asked questions
Which Powerflex range should I choose for my Subaru Impreza GR, GH (2007 - 2011) & WRX + STI?
Road Series suits road and fast-road use. Black Series uses a firmer 95 Shore A compound for track and motorsport. Choose the range that matches how you use the car.
Are Powerflex bushes covered by a warranty?
Powerflex offers a lifetime warranty to the original purchaser when bought through an authorised distributor. Parts used for track, motorsport or competition, and part numbers ending in BLK (Black Series), are excluded. Source: Powerflex lifetime warranty terms. Checked 9 November 2026.
Will polyurethane bushes make the ride harsher?
Polyurethane is firmer than rubber, so you will feel the car respond more directly. Road Series kits use different compounds for different positions, from 65A to 95A, to balance control with comfort. Black Series is the firmest at 95 Shore A.
How do I know which bushes I need?
Use the fitting diagram for your chosen range. It numbers every bush position on the Subaru Impreza GR, GH (2007 - 2011) & WRX + STI and gives the matching Powerflex part number, so you can replace a single worn bush or the whole set.
Is there anything to check before ordering?
Yes. Read the fitment notes above, as some parts only fit certain years or specifications of the Subaru Impreza GR, GH (2007 - 2011) & WRX + STI.
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