Coilovers are matched springs and shocks which are typically used for their greater control and adjustability of the suspension (ride height, shock bump/rebound, corner-weight). Kits vary in their price, quality and availability, but can be found for the K11. Many coilover kits do not use a coilover setup in the rear of the K11 as it was not designed for Macpherson struts. This however is the case for the ANK11 with the rears using a similar strut setup to the fronts, due to the 4WD configuration.

These kits will often allow for rear height adjustability via an adjustable spring perch and aftermarket spring in the stock location, with the shock height also adjustable separately to match. Different brands offer different levels of shock/dampner adjustment. Some manufacturers also offer superior pillow ball uppermounts for the front coilovers as opposed to using rubber tops.

Spring stiffness can often be custom ordered with your coilovers ranging from the soft end (3kg front 2.3kg rear found on the Nismo S-tunes) to the stiff end (8kg front 4kg rear found on circuit spec RG's).

Some of the brands/models available are:

Japanese:

• B-Crews
• Aspect
• Tanabe
• RG (Racing Gear)
• GAB
  • Revo Stroke
• Cusco
• Nismo
  • S-Tune

Taiwanese and Chinese

• G4/D2
• K-Sport
  • Kontrol Pro

European

• SPAXX
• BC

DIY?

• People have fitted corsa B coilovers with a drilled out top mount & spacers