NX Lightning Series Solenoids flow great, weigh less and look sexy. \nNX Lightning solenoids feature a raised inlet and a bottom exit which eliminates up to four 90 degree turns and one expansion area in the body of the solenoid. Lightning series solenoids are CNC machined from lightweight billet aluminum and topped with carbon fiber cans for the ultimate in weight savings. \n\nLightning series fuel solenoids features a bypass port which allows you to connect a small bypass/return line to your tank. This eliminates lean spikes caused by trapped air between your fuel pressure regulator and the fuel solenoid.\n\nNitrous Express only uses the highest quality, made in the USA solenoids. Don’t be fooled by low price come-ons, the solenoids are the most important component of a nitrous system. Lightning series solenoids come standard in many NX nitrous systems and are also available separately as an upgrade to your existing nitrous system. \n\nNote: We also recommend that you check out the NX Lightning series nitrous solenoids. They feature a bypass port which allows you to connect a purge valve directly to the body of the nitrous solenoid. Connecting the purge valve to the body of the nitrous solenoid not only looks cleaner, it ensures that there is no trapped air in the body of the solenoid.