The mazdaspeed 3 ultimo coilovers are height adjustable with cnc machined locking perches which allow you to easily adjust your ride height from 2 to 4 inches below that of the oem suspension this allows for a more aggressive stance and a lower center of gravity. The 2010 2013 mazdaspeed 3 uses a shorter bolt that does not fit with this shock you can find the correct bolt here bc racing br type coilovers are their flagship line that gives you the ultimate adjustability of height and dampening and allows you to maintain a solid street setup while being able to handle occasional track duty. 2010 2013 mazdaspeed 3 spring rates front 330 lbs in rear 240 lbs in progressive drop range 1 3 inches the raceland mazdaspeed3 classic coilovers are ideal for the driver who is seeking high performance at an affordable price our speed3 classic coilovers will fit all 2010 2013 speed3 models q. Mazda 3 mazdaspeed 2010 b16 series pss9 front and rear lowering coilover kit with 04 1 front and 02 1 rear body drop by bilsteinr quantity sold as a kit the manually adjustable damping mono tube gas shock absorbers feature. 2010 2013 mazda mazda3 bl godspeed project monoss coilover suspension kit applications 2010 2011 2012 2013 mazda mazda3 includes mazdaspeed 3 bl godspeed