MAX VIP True Coilovers for Y34 and F50 Chassis Nissan. Fits 03-04 Infiniti M45 and F50 02-06 Q45/Cima. These are designed to go scrape-the-frame low - 18kg/mm front spring rates, 12kg/mm rear spring rates are standard, but variety of spring rates are available by request. - New Ultra High Range Dampers for wide range of damper tuning in 32 clicks. - Eliminates separated rear spring and shock and converts to a true coilover for easier tuning and wider range of available spring rates. - Y34 specific adjustable front camber plates with long slots for drastic camber adjustment. - Fully threaded damper & lower mount allows vehicle height to be adjusted independent of the spring preload. - Pillow ball upper mount on front AND rear allows you to change track width without binding the coilovers. Perfect for use with extended lower arms or extreme negative camber settings. - Spring upper perch provides independence between the spring and the pillow-ball - Billet T6061 lightweight anodized aluminum rear mounts, collars, perches. Steel front lower mounts. -PARTS SHOP MAX block text logo is precision lasered down all the threads on each damper to quickly match settings on the left and right at a glance. - Progressive Microcellular Bump Stops -Poly rear lower mount bushings standard -AIRBAG OVER DAMPER UPGRADEABLE for $900 (20mm Bellows front / 14mm Sleeves rear) ***INSTALL NOTES: Threaded steel front lower mounts must be welded onto knuckles with the OEM strut tubes cut 12mm above their original welded connection point. Our lower mount welds to the knuckle around its base as well as through the holes to the short remaining portion of the OEM strut tube. S13 and S14 front lower knuckle mounts are available separately and can be threaded onto these dampers.