Revolution Racing Shocks is the only Shock Manufacturer to offer an Externally Adjustable Internal Bypass Shock. The “concept” of an all in one shock absorber has been tried before, but where others have failed, Revolution Racing Shocks has dominated. Because the technology is top secret and Patent Pending, we can not discuss exactly what makes this shock work as great as it does. What we can tell you is that the dynamics of this bypass shock are very similar to a typical external bypass and separate coil-over setup. We just took it a step further and developed a way to incorporate a coil-over into a position sensitive bypass shock that is 100% Externally Adjustable. With Revolution Racing Shocks, our customers utilize one single shock per wheel with maximum results. Our dimensions are built to industry standard so most single coil-over cars can be upgraded to our full bypass setup without any modifications. They can usually just be bolted on in replacement of a standard coil-over. All Shocks can be easily adjusted with a ¼” Ratchet Wrench, Standard Box or open end wrench, or Flat Screwdriver.