Free Shipping in the United States and Canada When the initial X-1 coilover project was conceived in 2009 the primary objective was to provide world class quality, handling and comfort for an affordable price. The X-3, which is the triple adjustable version of these coilovers, was designed with a slightly different set of priorities. With the X-3 money was no object. We wanted to build the ultimate coilover set. After nearly 3 years of development and testing as well as partnering with three of the best suspension names in the business we have achieved just that. Penske triple adjustable external reservoirs Industry leading digression and adjustment range Standard high caster offset camber plates are twice as thick as most camber plates. They feature fully recessed hardware with dual camber adjustment channels as well as triple bolt spherical housings. These are the strongest, most rigid plates on the market, and they also offer more positive caster than any other option. Proprietary Cygnus Performance developed Hyperco MW springs (can substitute Swift, Eibach or Merwede for no additional charge) Optional hydraulic spring perches ensure perfectly smooth operation and even spring force distribution Standard Japanese made heim joints eliminate any unwanted movement or play Group V Esther based synthetic shock oil offers maximum viscosity index User adjustable nitrogen pressure Standard self-locking lower spring perches, self-locking lower mount collars and triple bolt camber plates make adjustment easy and slipping virtually impossible Countless hours of application specific R&D Rebuildable, upgradeable and serviceable in the United States To learn more about the X-3 coilovers please scroll down to the main description.