BC Racing ER Series Coilover System (2015 - 2021 Subaru Impreza STI / WRX - VAB / VAF / VAG) - F-25-ER
Elite Suspension Control for the 2015 - 2021 Subaru WRX & STI
Transform the handling of your Subaru WRX or STI (VAB / VAF / VAG) with the BC Racing ER Series Coilover System - the most advanced, track-developed suspension option in BC's lineup. Designed for drivers who demand full authority over their setup, the ER Series features independent 30-way compression and rebound adjustment paired with remote reservoirs to dramatically increase oil capacity and boost heat dissipation. This results in consistent, repeatable damping performance whether you're daily driving, hitting backroads, or pushing limits on track.
Performance Highlights
- Independent 30-way compression and rebound adjustment for precise and customizable tuning.
- Remote reservoirs improve heat management and increase oil capacity for stable high-speed damping.
- Mono-tube, linear twin-piston damper provides predictable, consistent response under all conditions.
- Independent height adjustment allows ride height changes without altering shock stroke or preload.
- Front and rear camber plates included where applicable for proper alignment correction.
- Pillowball mounts included on kits where camber plates are not applicable for sharper steering feel.
- Custom spring rates and custom valving available for competition or specialized setups.
- Swift Spring upgrades offered for most applications for improved linearity and responsiveness.
- 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 linear twin-piston with external reservoirs
- Compression Adjustment: 30-way via remote reservoirs
- Rebound Adjustment: 30-way via damper top
- Height Adjustment: Independent of spring preload
- Default Spring Rates: Front 7kg/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 designed for enthusiasts who demand maximum damping control, tuning flexibility, and heat stability. With independent compression and rebound adjustment, remote reservoirs, and a twin-piston design optimized through extensive track testing, the ER Series delivers elite-level consistency, sharper handling, and superior fade resistance. Whether you're carving mountain roads, daily commuting, or chasing lap times, these coilovers provide the confidence and refinement your WRX or STI deserves.
FAQs
How does the ER Series differ from the BR and DS Series?
The ER Series is the only BC Racing line offering independent compression and rebound adjustment with remote reservoirs, giving it greater heat control and tuning versatility than the BR and DS models.
Are ER Series coilovers good for daily driving?
Yes. While engineered for high-performance driving, their wide adjustment range makes them comfortable enough for daily use with the ability to stiffen up for spirited or track driving.
Do these coilovers include camber plates?
Yes. Front and rear camber plates are included on all applicable kits, and pillowball mounts are used when camber plates do not apply.
Can I order custom spring rates or Swift Spring upgrades?
Absolutely. Custom spring rates, custom valving, and Swift Spring upgrades are available to match your driving preferences.
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 unmatched product knowledge, fast shipping, and competitive pricing. Whether your WRX or STI build is geared toward street, track, or a combination of both, we'll help you choose the ideal ER configuration. Contact us anytime at sales@beefcakeracing.com or call 1-855-827-7223. Beefcake Racing - Performance Starts Here.
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