Nitrous Express Conversion for Single Nozzle System to E-85 includes solenoid wrench, E85 piston and E85 jetting for customers vehicle. NX introduces the only progressive controller made for the boosted EFI enthusiast. Progressive nitrous delivery with dual stage capability. Progressive ramperes are based on either boost or time reference; internal window switch and map sensor are all packed into one small water proof unit! The internal MAP sensor can handle over 100 lbs of boost and the extra heavy duty solenoid drivers can handle over 80 amperes of continuous load! This unit gives the tuner a tool with infinite adjustability and rugged dependability.