The Koni STR.T (aka Koni Orange) is a non-adjustable shock that is essentially a Koni Sport (Yellow) set to full soft. It's a very high quality replacement for stock shocks that comes with a lifetime warranty. Shocks are an important factor in your car's handling and ride, and the stock non-Bilsteins only last about 30,000 miles before needing replacement. Even Bilsteins have a lifespan of under 100,000 miles - and these Konis will ride and handle better than a set of functioning stock Bilsteins anyhow, especially the 2006-12 ones.
Because of their valving, we do not recommend these shocks for cars with aftermarket springs. They do not have sufficient damping to control a spring with a higher spring rate, and the car will pogo around as if it had bad shocks. For that use, we recommend the Koni Sport.
Includes a set of our Multicellular Urethane bumpstops, which will improve ride quality, travel and the ability to absorb mid-corner bumps. We have found that many NCs by this point have disintegrated bumpstops anyhow. This is an exclusive upgrade only at Flyin' Miata!