With power and reliability being the two key criteria for the development of the Evo turbo upgrade kit, ATP set out to test every possible hardware combination available. In the ATP kit, you will find a system that integrates a plethora of unique but well designed components that compliment each other to achieve those two things. In an attempt to exceed the customers' expectations ATP has added other features such as a "direct-bolt-up" housing that overcomes the "reverse-rotation" issue, v-band downpipe discharge, bolt-up oil/coolant kits, etc. in order to make the installation process as simple as possible. You get all of this while retaining the appearance of a completely stock engine bay. 100% bolt-on design. No welding, cutting, or fabrication.