Audi: 05-11 A6 Sedan 2WD & Quattro (4F/C6) - ST X Coilover Kit - ST Suspensions

ST SuspensionsSKU: STS13210059

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Height adjustable suspension system offering a mix of sportiness and simplicity whilst still maintaining road comfort.


ST X Coilover Kit was developed for the everyday driver, simple uncomplicated precise road performance for those who want to get in and drive. The wide range of ride height adjustability also allows for fine tuning tire and wheel fitments.


ST Suspensions do not accept compromises; hand assembled dampers engineered by KW are used in their coilover systems, helping to improve your driving experience further.  All ST X Coilovers are application specific.  Check vehicle model fitment and lowering rate in the table below.


The adjustable spring perch is manufactured of durable and friction optimized polyamide composite material with a stainless steel insert.  Composite material prevents corrosion between the strut and perch, ensuring long lasting height adjustability.


The galvanized zinc coated steel struts along with the low friction materials provide layers of protection against corrosion for long lasting use.  The coilovers also have a dust protection system that prevents unwanted dirt and particulate from coming in to contact with the hardened chrome piston rod or getting into the valve packs.


The coilover kit is further reinforced with a multi-layered pressure resistant sealing package, monoblock guide system and a low friction band which works inside the pressure resistant internal damper housing.


ST X Coilovers deliver precise adjustment to your ride height as well as enhancing the look of your car. 


  • Height adjustability
  • Hand assembled KW dampers
  • Composite adjustable spring perch
  • Dust protection and bump stops
  • Up to 85mm adjustment range (vehicle dependent)
  • Galvanized zinc coated steel struts
  • Hardened chrome piston rod


  • Seamless adjustability
  • Weather resistant
  • Precise handling
  • Improved driving experience
  • Precise adjustment
  • Excellent corrosion protection 
  Pictures For Illustrative Purposes Only


    Audi Model / Year Lowering Rate
    *A6 Base V6 (3123cc)
    Front: 1.4"-2.6" / Rear: 1.4"-2.6"
    *A6 Base V6 (3197cc)
    Front: 1.4"-2.6" / Rear: 1.4"-2.6"
    *A6 Quattro Base V6 (2995cc)
    Front: 1.4"-2.6" / Rear: 1.4"-2.6"
    *A6 Quattro Base V6 (3123cc)
    2005-2008 Front: 1.4"-2.6" / Rear: 1.4"-2.6"
    *A6 Quattro Base V8 (4163cc)
    2005-2011 Front: 1.4"-2.6" / Rear: 1.4"-2.6"

    * Notes

    • Does not fit vehicles with automatic level control, unless it can be disabled
    • All vehicles equipped with the EDC system (electronic damper control) are not applicable

    CALIFORNIA WARNING: Cancer and Reproductive Harm -


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