Aluminum shock absorber set is completely redesigned for improved traction and steering traits, and optimized up & down travel. The redesigned longer surprise systems take care of the longer shock shafts, and pistons made out of special white Delrinââ? product have now been optimized for entire quantity and sizes. Utilizing the aluminum shock absorbers, vehicle creates more traction and better steering faculties and car roll. The set of pistons contain 2 and 3-hole pistons with 1.0, 1.1 and 1.2mm diameter holes. The pistons are accuracy molded from unique white Delrinââ? product to ensure extreme roundness and extra-smooth dampening, while keeping maximum tightness and durability. Shock figures are CNC-machined from premium Swiss 7075 T6 aluminum and hardened to make sure maximum lifespan. Outside fine threading enables quick & effortless trip height modification. The shocks function low-profile membranes for super-smooth, accurate damping. Note: To use #338001-K on NT1 Specs you additionally must use #332080 and #333080 surprise towers. To work well with this shock absorber set on RX8 specs you need to use #342080 and #343082 shock towers.