• The only 4cyl. direct port nitrous system that can be safely jetted down to 50hp. This system works great on stock engines. • Adjustable to 200hp, perfect for fully built competition engines. • Uses one injector nozzle per cylinder. Gives perfect nitrous and fuel distribution. • Features easy to install, pre-made nozzle flex-lines. No hours wasted on cutting and bending hard-lines. • Dual-stage jet technology uses one jet in the distribution block and one jet in the injector nozzle. Offers much finer tuning adjustments as well as easy HP level changes. • Unique nozzle design has "Active Fuel Control" built in. This feature monitors bottle pressure and when the nitrous system is engaged, it adds or subtracts enrichment fuel so the engine never runs too rich or too lean.

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To have Club RSX price match the ZEX 4 Cyl. Direct Port Nitrous System, please email: pricematch@clubrsx.com or call (866) CLUB-RSX.

Club RSX's Price Match Policy
Whenever possible Club RSX will price match the advertised total price (price including all shipping and handling charges) from any legitimate retailer. The price must be listed in a magazine, newspaper, or listed on an open to the public website. Club RSX will not price match items listed on any auction based website; as they are often not legitimate retailers. We will also not price match special group discounts or sale prices. We will verify all of the information before matching the price. Most of the time, if the price is legitimate, Club RSX will adjust our pricing so that every one of our customers can benefit!

Club RSX.com's free shipping applies to every order*, there is no minimum purchase and there are no handling fees added to your order. We feel this allows you to purchase when you want and not have to wait to order a lot of items at once to save on shipping costs. At Club RSX.com the price that you see is the price that you pay each and every time. Alaska, Hawaii, and international orders are extra and not included in the free shipping offer.

*Alaska, Hawaii, and International Shipments
Along with Alaska and Hawaii, Club RSX will ship to most country's in the world. To get a shipping quote, all that you need to do is add the items that you would like to purchase to your basket and follow the check out steps. Once you reach the shipping and payment screen that will give you both your shipping costs and payment options. Club RSX uses Global EMS (US Mail) and/or UPS to ship internationally. Some items that we sell are too large to be shipped using Global EMS so UPS would be your only option.

Do you have a question about ZEX 4 Cyl. Direct Port Nitrous System? We have two different ways for you to contact us so that we can answer your questions.

Phone: (866) CLUB-RSX (866-258-2779) - Mon to Fri 10am to 5pm Mountain Standard
Email: sales@clubrsx.com