BC Racing ZR Series Coilover System (2008 - 2014 Subaru Impreza STI Hatchback - GRB) - F-10-ZR
Pro-Level Adjustability for the GRB STI Hatch
Take your 2008 - 2014 Subaru Impreza STI Hatchback (GRB) to true motorsport capability with the BC Racing ZR Series Coilover System. As the most adjustable suspension package BC Racing produces, the ZR Series is engineered for drivers who demand deep, granular damping control beyond what the HM or ER Series can offer. With 15-click low-speed compression, 12-click high-speed compression, and 30-click rebound adjustability, this system allows GRB owners to fine-tune suspension behavior for every corner, surface, and condition. McPherson applications like the STI Hatch receive inverted mono-tube dampers and externally mounted remote reservoirs to keep temperatures stable and damping consistent during hard track sessions. Swift Springs come standard, and full ride height adjustment is maintained independent of preload for maximum flexibility.
Performance Highlights
- Inverted mono-tube damper design increases structural rigidity and improves feedback under high loads.
- 15-click low-speed compression adjustment for fine control of weight transfer, roll, and pitch.
- 12-click high-speed compression adjustment for tuning impacts, bumps, and curb strikes.
- 30-click rebound adjustment to regulate shock recovery and chassis stability.
- External remote reservoirs allow increased oil capacity and superior heat dissipation.
- Steel-braided lines or solid stems depending on damper orientation and chassis layout.
- Swift Springs included standard for consistent rate control and reduced unsprung weight.
- Independent ride height adjustment maintains full shock stroke regardless of stance.
- Front and rear camber plates included where applicable for precision alignment tuning.
- Pillowball mounts provided when camber plates are not used.
- Custom valving and spring rate options available for competition-specific builds.
- Fully rebuildable with a 2-year warranty against manufacturer defects.
Quick Specs
- Brand: BC Racing
- Series: ZR Series
- Part Number: F-10-ZR
- Vehicle Fitment: 2008 - 2014 Subaru Impreza STI Hatchback (GRB)
- Damper Design: Inverted mono-tube, linear twin-piston
- Rebound Adjustment: 30-clicks
- Low-Speed Compression: 15-clicks
- High-Speed Compression: 12-clicks
- Height Adjustment: Independent of spring preload
- Springs: Swift Springs included
- Default Spring Rates: Front 8kg/mm | Rear 8kg/mm
- Camber Plates: Front & rear included where applicable
- Mount Type: Pillowball mounts when camber plates do not apply
- Warranty: 2 Years (Manufacturer Defect)
- Rebuildable: Yes
Why Choose BC Racing ZR Series Coilovers?
The ZR Series is the most advanced damping system BC Racing offers, making it the ideal choice for GRB STI hatch owners focused on competitive performance. Its separate high- and low-speed compression circuits provide unmatched chassis control, while the inverted dampers and remote reservoirs ensure consistency during long, demanding sessions. For track days, time attack builds, or serious canyon driving, the ZR Series delivers elite adjustability, thermal stability, and razor-sharp handling response.
FAQs
How does the ZR Series compare to the HM or ER Series?
The ZR Series adds individual high- and low-speed compression tuning plus extensive rebound control, giving it significantly more adjustability than the HM or ER Series.
Are inverted dampers included for the GRB STI?
Yes. McPherson strut vehicles like the GRB receive inverted mono-tube dampers paired with remote external reservoirs.
Do these include Swift Springs?
Yes. Swift Springs are standard on all ZR kits for improved linearity and responsiveness.
Can I order custom spring rates or custom valving?
Yes. BC Racing offers custom valving and custom spring rates for track or competition-focused builds.
Fitment
- 2008 Subaru Impreza STI Hatchback (GRB)
- 2009 Subaru Impreza STI Hatchback (GRB)
- 2010 Subaru Impreza STI Hatchback (GRB)
- 2011 Subaru Impreza STI Hatchback (GRB)
- 2012 Subaru Impreza STI Hatchback (GRB)
- 2013 Subaru Impreza STI Hatchback (GRB)
- 2014 Subaru Impreza STI Hatchback (GRB)
Why Buy from Beefcake Racing?
Beefcake Racing is a leading authorized BC Racing dealer, offering expert suspension support, fast fulfillment, and competitive pricing. Whether you're upgrading your GRB for competitive motorsport or high-performance street driving, our team will help you select the ideal ZR Series configuration. Reach us at sales@beefcakeracing.com or call 1-855-827-7223. Beefcake Racing - Performance Starts Here.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
