Product Details

The KSport Circuit Pro 3 Way Adjustable Coilover Kit is the top of the KSport track-day ladder for the 2015-2018 Subaru WRX. Three independent knobs separate high-speed compression, low-speed compression, and rebound — so you can control how the chassis reacts to curbs, how it settles through a fast sweeper, and how it recovers from a hard braking zone, all without touching the other two axes.

For serious Subaru WRX track drivers and race teams, the Circuit Pro delivers the setup flexibility you need to get the absolute last tenth out of a lap. Remote reservoirs provide the oil volume and heat capacity required for long sessions, and the monotube design gives the consistent performance that makes your data meaningful. This is a full race coilover you can still dial back for the drive home.

Features

  • Built for racing
  • External reservoirs for independent rebound and compression adjustment
  • 11,664 possible tuning combinations
  • Stiffer spring rates and shock valving combined with 20-30mm shorter shock stroke
  • Upgraded bumpstops to prevent the shock from bottoming out over uneven pavement or harsh road conditions.
  • 36 levels of damping which allow you the ability to perfectly dial in your coilover system
  • Collars and upper mounts made from 6061 aluminum with T6 for increased hardness
  • Adjustable spring perch for height adjustment
  • All metal pillowball for added strength and responsiveness
  • Adjustable lower mount allowing maximum suspension travel
  • Monotube high pressure design for better performance and heat dissipation
  • Electroplated body for added protection from corrosion and rust

Specifications

Part Number CSB140-C3
Damping Adjustment 3-Way (High-Speed Compression, Low-Speed Compression, Rebound)
Height Adjustable Yes
Spring Rate (Front) 16.0 kg/mm (896 lbs/in)
Spring Rate (Rear) 16.0 kg/mm (896 lbs/in)
Spring Type Linear
Top Mount (Front) Pillowball Mount with camber adjustment
Top Mount (Rear) Aluminum Mount no camber adjustment

Vehicle Fitment

  • 2015 Subaru WRX
  • 2016 Subaru WRX
  • 2017 Subaru WRX
  • 2018 Subaru WRX

Important Fitment Note

Incl. STI

Reviews / Q&A

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