Aluminum shock absorber set is completely redesigned for improved traction and steering traits, and optimized up & down travel. The redesigned longer shock bodies take care of the longer surprise shafts, and pistons made from special white Delrinââ? product are optimized for entire number and sizes. Because of the aluminum surprise absorbers, car generates more traction and better steering faculties and automobile roll. The pair of pistons consist of 2 and 3-hole pistons with 1.0, 1.1 and 1.2mm diameter holes. The pistons are accuracy molded from special white Delrinââ? product to ensure extreme roundness and extra-smooth dampening, while maintaining maximum stiffness and durability. Shock bodies are CNC-machined from premium Swiss 7075 T6 aluminum and hardened to make certain maximum lifespan. External fine threading enables quick & easy ride height adjustment. The shocks feature low-profile membranes for super-smooth, accurate damping. Note: to utilize #338001-K on NT1 Specs additionally you need certainly to use #332080 and #333080 shock towers. To utilize this surprise absorber set on RX8 specifications you need certainly to utilize #342080 and #343082 shock towers.