Doc race n54 single turbo. This is the system we run on the DOC Race car and is driven daily without any sort of stalling. Our turbo kit currently holds the N54 single turbo HP record at 889hp. . Included is a T4 twin scroll manifold which is the heart of this turbo kit. * As of 9/20 our kits come with the most updated O2 placement to help with burning out O2 sensors. The DOC Race N54 Top Mount system is the ultimate turbo kit for your street machine! Currently, this kit currently holds the N54 single turbo HP record at 889hp. They come complete with all nessary hardware to install and is listed below. It comes complete with all necessary hardware to install, listed below. It was put to the test by a handful of very high performing race cars before attempting to fit to our test car. Our manifold has been redesigned (9/20) to now be a one piece design for ease of installation. The DOC Race turbo kit is the ultimate turbo kit for your street machine! They come complete with all necessary hardware to install and is listed below. DOC Race makes high end race proven turbo manifolds. We also make turbo kits for BMW 335i. ctzdzg yvqgr tpke uwgk tgjje jhzxsr xlqt poo dgni rirgywoz