KW stainless steel technology "inox-line"

Our KW stainless steel "inox-line" coilovers stand for
long driving pleasure

All of our KW coilovers are made using high quality and perfectly matching components and materials. So not only do both our renowned racing applications for international motorsports benefit , but so do your KW coilovers for the street.

KW Inoxlinie

All our KW coilovers, Variant 1, Variant 2, Variant 3, Street Comfort, and the adaptive KW DDC coilovers from the KW iSuspension range are made from stainless steel. Whether it is the strut, the trapezoid thread, or the vehicle-specific connections - we only use stainless steel. Our stainless steel "inox-line" coilovers in conjunction with corrosion-resistant springs and elastomers stand allow for long-term driving pleasure.

  • Highly corrosion-resistant
  • Unsurpassed quality
  • No signs of wear at the adjustment mechanism – also during long use
  • Trapezoid thread in stainless steel eases height-adjustment
  • Perfect look – permanently
  • High load tolerance
KW Inoxlinie
KW Inoxlinie

The naked truth - The KW salt spray test

How resistant to rust are the KW coilovers "inox line"?

We hear from our satisfied customers daily, but we wanted to know precisely so we worked together with the Fachhochschule (University of Applied Sciences) Esslingen to test it out. The chemists and engineers of the FH tested the KW coilover struts made of stainless steel. Intotal nine coilover struts from six different manufacturers went through a quality check.

Competitors - Coilover suspensions, zinc-plated

After 26 hours

  • We see the first signs of pitting corrosion and corrosion patches
KW Inoxlinie

After 145 hours

  • It is starting to rust, there is corrosion in gaps and weld seams
KW Inoxlinie

After 229 hours

  • After 46 hours corrosion patches, after 229 hours it is not mobile anymore
KW Inoxlinie


  • KW coilover struts "inox-line" Variant 1, 2 and 3
  • KW coilover struts galvanized in Variant 2
  • 5 competitors with new, galvanized coilover struts

KW coilover "inox-line" stainless steel

After 26 hours

  • The inox-line KW Variant 3 piston rod is in perfect condition
KW Inoxlinie

After 145 hours

  • The inox-line, KW Variant 1 there is no corrosion detectable at struts
KW Inoxlinie

After 229 hours

  • The inox-line, KW Variant 1 still is easy to move, with no corrosion
KW Inoxlinie


  • 2x very good KW "inox-line“ Variant 1 & Variant 3
  • 1x good KW "inox-line“ Variant 2
  • 2x moderately good competitors
  • 1x moderate competitor
  • 2x poor competitors

Final test result of the FH (University) Esslingen:

KW coilover struts in stainless steel technology "inox line" are clearly superior to galvanized versions in terms of corrosion resistance, and ensure smooth operation after 480 hours.

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