Kia Optima/Hyundai Sonata - Stiff Ring Chassis Collars

$199.95 USD

Kia Optima/Hyundai Sonata - Stiff Ring Chassis Collars

$199.95 USD


  • These small aluminum rings make a night & day difference in the way your Kia Optima or Hyundai Sonata feels when doing day to day driving
  • Used to correct the chassis's basic geometry by filling the gap between the subframe bolts, subframe, and the car's chassis bolt holes
  • The vehicle's engine, transmission, suspension, and the uni-body are mounted on the subframe and when installed, these work by correcting the geometry setup
  • By eliminating the gap, vibration through the chassis is greatly reduced improving driver feedback
  • Helps to protect & prolong the vehicle's undercarriage parts lifespan. Eg: Steering rack, lower control arms, etc
  • Stiff Ring chassis collars are made of a special grade of aluminum alloy
  • Your vehicle's handling will be improved significantly with these installed

Vehicle Applications:

  • 2011-2015 Kia Optima (All Models)
  • 2016 Kia Optima (Hybrid Model only)
  • 2011-2014 Hyundai Sonata (All Models)
  • If you have a 2016-2020 Optima or 2015-2019 Hyundai Sonata, we do have these available for special order, just not listed on the site at this time. Email us directly at: & we can invoice you to order

Available Sets:

  • 14pc = 6pc front and 8pc rear
  • 8pc = Rear set
  • 6pc = Front set

Additional Info:

  • Torque Settings = 115 ft/lbs (front) 125 ft/lbs (rear)
  • Installation Instructions: Part 1 & Part 2