Function Form Type IV performance coilovers are full-bodied and made of a special blend of steel for extra strength. Variable damping and proper spring rates will give you the perfect steering feel and confidence in the turns, with a threaded body and lower mounts for ride height adjustments so you can get that lowered look. Features: Inverted monotube coilovers designed with a long stroke for added travel Aggressively tuned damping characteristics 40mm inverted piston design increases damper strength optimizing performance during aggressive movement Large fluid valve assembly and oil chambers Independent ride height adjustment One way adjustable w/ 24-step spectrum 2 Year limited manufacture warranty Spring Rates Model 3 2WD - 8k (448lbs) Front, 8k (448lbs) RearModel 3 AWD - 10k (560lbs) Front, 8k (448lbs) RearModel Y - 10k (560lbs) Front, 8k (448lbs) Rear *Images used for representational purposes only