Product Details

BC Racing ER Series Coilovers for the 1983-1987 Toyota Corolla AE86 put race-grade adjustability in reach of the serious track-day driver, with independent compression and rebound tuning at every corner. Every kit is extensively tested on the Corolla AE86 chassis and refined until it balances ride quality with performance — the reason Corolla AE86 coilovers from BC Racing are the best-selling adjustable kits in their segment worldwide.

ER Series kits run a linear twin-piston design in a mono-tube body, with compression and rebound on separate external adjusters. That lets you fine-tune chassis balance corner by corner — stiffer front for turn-in, softer rear for exit grip, whatever the session calls for. The off-the-shelf setup from BC Racing is deliberately balanced — spring rates and valving chosen so the kit feels comfortable day-to-day without giving up performance when you push it. Drivers who want a different recipe can spec Swift Springs, custom spring rates, or fully custom valving at checkout; BC will tune the dampers to match, which is a depth of customization most brands only offer on their top-tier kits.

BC Racing's reputation in the aftermarket suspension world is built on four things: competitive pricing that beats the rest of the fully-adjustable market, customization depth that rivals the top-tier race brands, long-term reliability earned over 20 years of production, and a rebuildable design that keeps the same set of dampers serving you through multiple builds. These Corolla AE86 coilovers arrive tuned for the Corolla AE86 chassis and ready to install — note that this is a weld-in kit and requires professional fabrication. Every kit ships with a 2-year manufacturer warranty, lifetime access to BC service parts (pistons, seals, shafts — no unit replacement required when it's time for a rebuild), and in-house tech support from both BC Racing and the Springrates team.

Features

  • 30-level rebound adjustment (top of damper)
  • 30-level compression adjustment (external reservoir)
  • Mono-tube damper with linear twin-piston design
  • Ride height adjustable independent of spring preload
  • Upper mount hardware varies by chassis — camber plates, pillowball, or reused OEM mounts. See the Specifications table for what's included on your kit.
  • Swift Spring and custom spring rate upgrades available at checkout
  • Custom damper valving paired with custom spring rates on request
  • Fully rebuildable — replacement parts available from BC for the life of the shock
  • 2-year manufacturer warranty against defects
Specifications
Part Number C-14-ER-SP
Part Name ER Series Coilovers
Vehicle 1983-1987 Toyota Corolla AE86
Drivetrain RWD
Damping Adjustment 2-Way (30 levels rebound/30 levels compression)
Ride-Height Adjustable Yes
Spring Rate - Front 6 kg/mm
Spring Rate - Rear 175 kg/mm
Spring Size - Front 62-200-6K
Spring Size - Rear 118-106-175K
Swift Springs - Front 62-178-X
Camber Plates - Front Included
Camber Plates - Rear Not Applicable
Suspension Design - Front True Coilover
Suspension Design - Rear Divorced
Notes
  • Includes front spindle
  • Kit does NOT include front spindle; use OEM or aftermarket spindle.
  • The ER Series is not available in Extreme-Low configuration.
  • Weld-In application — requires welding to the chassis for installation.
Vehicle Fitment
  • 1983 Toyota Corolla AE86 RWD
  • 1984 Toyota Corolla AE86 RWD
  • 1985 Toyota Corolla AE86 RWD
  • 1986 Toyota Corolla AE86 RWD
  • 1987 Toyota Corolla AE86 RWD

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