BC Racing ER Series Coilover System (2015 - 2021 Subaru Impreza STI / WRX - VAB / VAF / VAG) - F-25-ER
Top-Tier Suspension Tuning for 2015 - 2021 Subaru WRX & STI
Optimize the performance of your 2015 - 2021 Subaru WRX or STI (VAB / VAF / VAG) with the BC Racing ER Series Coilover System - the flagship adjustable suspension in BC's lineup. Designed for drivers who demand maximum control and precision, the ER Series features independent 30-way compression and rebound adjustment paired with remote reservoirs that boost oil capacity and significantly improve heat dissipation. Extensively track-tested and engineered for consistent damping behavior, this system provides the tuning flexibility, stability, and responsiveness needed for both aggressive street setups and serious track use.
Performance Highlights
- Independent 30-way compression and rebound adjustment for fully customizable damping control.
- Remote reservoirs increase fluid volume and reduce heat fade under prolonged spirited driving.
- Mono-tube linear twin-piston damper delivers predictable, stable suspension response.
- Independent height adjustment allows ride-height tuning without changing spring preload.
- Front and rear camber plates included where applicable for advanced alignment adjustment.
- Pillowball mounts standard on non-camber-plate applications for sharper steering feel.
- Custom spring rates and custom valving available based on driver preference and vehicle use.
- Swift Spring upgrades available for improved response and consistency.
- Fully rebuildable and backed by a 2-year manufacturer warranty.
Quick Specs
- Brand: BC Racing
- Series: ER Series
- Part Number: F-25-ER
- Vehicle Fitment: 2015 - 2021 Subaru WRX / STI (VAB / VAF / VAG)
- Damper Design: Mono-tube twin-piston with external reservoirs
- Compression Adjustment: 30-way via external reservoirs
- Rebound Adjustment: 30-way via damper top
- Height Adjustment: Independent of spring preload
- Default Spring Rates: Front 6.5kg/mm | Rear 6kg/mm
- Camber Plates: Front and rear included where applicable
- Mount Type: Pillowball mounts standard when camber plates are not used
- Warranty: 2 Years (Manufacturer Defect)
- Rebuildable: Yes
Why Choose BC Racing ER Series Coilovers?
The ER Series is engineered for enthusiasts who want maximum damping authority, improved heat stability, and track-proven performance. With independent compression and rebound tuning, remote reservoirs, and a proven linear twin-piston design, the ER Series delivers next-level consistency, sharper handling, and unmatched adjustability. Whether your goal is canyon carving, road course performance, or a refined street setup, these coilovers give your WRX or STI the suspension it truly deserves.
FAQs
How does the ER Series differ from BC Racing's BR and DS lines?
The ER Series offers independent compression and rebound adjustment with remote reservoirs, giving it superior tuning flexibility and heat dissipation compared to the BR (linear piston) and DS (digressive piston) models.
Is the ER Series suitable for daily driving?
Yes. With a wide damping range, the ER Series can be configured for daily comfort while also offering aggressive performance tuning when desired.
Do these coilovers include camber plates?
Yes. Front and rear camber plates are included on applicable kits, and pillowball mounts are used when camber plates do not apply.
Can I choose custom spring rates or order Swift Springs?
Absolutely. The ER Series supports custom spring rates, custom valving, and Swift Spring upgrades for optimized performance.
Fitment
- 2015 Subaru WRX / STI (VAB / VAF / VAG)
- 2016 Subaru WRX / STI (VAB / VAF / VAG)
- 2017 Subaru WRX / STI (VAB / VAF / VAG)
- 2018 Subaru WRX / STI (VAB / VAF / VAG)
- 2019 Subaru WRX / STI (VAB / VAF / VAG)
- 2020 Subaru WRX / STI (VAB / VAF / VAG)
- 2021 Subaru WRX / STI (VAB / VAF / VAG)
Why Buy from Beefcake Racing?
Beefcake Racing is an authorized BC Racing dealer offering expert suspension guidance, fast shipping, and competitive pricing. Whether your WRX or STI build is aimed at street performance, weekend track use, or both, our team will help you select the perfect ER Series configuration. Contact us at sales@beefcakeracing.com or call 1-855-827-7223. Beefcake Racing - Performance Starts Here.
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