What makes KW so good? Apart from their build quality, assembly process, attention to detail and technical support?

Their durability and resistance to rust, meaning KW coilovers continue to work, unlike cheaper competitors where spring perches corrode onto the struts making adjustment impossible.

All KW coilovers are made using high quality and perfectly matching components and materials. So both their renowned racing applications for international motorsports benefit, but also your KW coilovers for the road.

All 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 the strut or the trapezoid thread or the vehicle-specific connections – KW only use stainless steel. KW stainless steel “inox-line” coilovers in conjunction with corrosion-resistant springs and elastomers stand for a 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

How resistant to rust are the KW coilovers “inox line”?
KW wanted to know precisely and therefore worked together with the Fachhochschule (University of Applied Sciences) Esslingen. The chemists and engineers of the FH tested the KW coilover struts made of stainless steel. So in total nine coilover struts from six different manufacturers went through a quality check.

The image shows the results which speak for themselves:

Some additional test pictures:

The final image by is referenced from an article by Mike Garrett on www.speedhunters.com from an interview with Michael Grassl from KW’s Motorsport Sales and Technical Support department. You can read the full article on the wesbite >>>> Ask The Expert: KW Answers Your Questions