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NX - Nitrous Express
Founded by a racer frustrated with lagging nitrous technology, Nitrous Express makes nitrous oxide injection systems designed from the ground up to be the most advanced,...
Founded by a racer frustrated with lagging nitrous technology, Nitrous Express makes nitrous oxide injection systems designed from the ground up to be the most advanced, most reliable, and most potent systems available. Built and extensively tested in America, NX “wet” nitrous systems arrive ready to install, without all the trial-and-error associated with other nitrous kits, and with accurate at-the-wheel horsepower ratings. In pursuit of perfect nitrous/fuel delivery, Nitrous Express CNC-machines its own high-efficiency, low-turbulence valves, jets, and solenoids. For complete systems, or components...
Founded by a racer frustrated with lagging nitrous technology, Nitrous Express makes nitrous oxide injection systems designed from the ground up to be the most advanced, most reliable, and most potent systems available. Built and extensively tested in America, NX “wet” nitrous systems arrive ready to install, without all the trial-and-error associated with other nitrous kits, and with accurate at-the-wheel horsepower ratings. In pursuit of perfect nitrous/fuel delivery, Nitrous Express CNC-machines its own high-efficiency, low-turbulence valves, jets, and solenoids. For complete systems, or components to complete or expand your existing nitrous setup, check out NX Nitrous Express products, available from Summit Racing!
Showing In Stock Items. Show All 113 Items.
Nitrous Accessory Package, GEN X-2™, Nitrous Accessory Package, Bottle Heater/Carb. Fuel Pressure Safety
Part Number: NEX-GENX2-4CARB
Not Yet Reviewed
Estimated Ship Date: May 15, 2026 if ordered today
Estimated Ship Date: May 15, 2026 if ordered today
Upgrade Kit, Nitrous Oxide, Gen-X2, Bottle Heater, Pressure Gauge, Fuel Switch, Blow Down Fitting, Kit
Part Number: NEX-GENX-2
Estimated Ship Date: May 22, 2026 if ordered today
Estimated Ship Date: May 22, 2026 if ordered today
Nitrous Accessory Package, GEN X 2 Package
Part Number: NEX-GENX2-6CARB
Not Yet Reviewed
Estimated Ship Date: May 12, 2026 if ordered today
Estimated Ship Date: May 12, 2026 if ordered today
Bottle Heater, Gen-X2 EFI Accessory Pack, Bottle Pressure Gauge, Purge Kit, Safety Blow-down Tube, Kit
Part Number: NEX-GENX2I
Not Yet Reviewed
Estimated Ship Date: May 12, 2026 if ordered today
Estimated Ship Date: May 12, 2026 if ordered today
Upgrade Kit, Nitrous Oxide, Gen-X, Bottle Heater, Pressure Gauge, Fuel Switch, Blow Down Fitting, Kit
Part Number: NEX-GEN-X
Not Yet Reviewed
Estimated Ship Date: May 12, 2026 if ordered today
Estimated Ship Date: May 12, 2026 if ordered today
Nitrous Oxide System, Proton, Wet, 35, 50, 75, 100, 125, 150 hp, 10 lb Bottle, Microswitch Activation, Kit
Part Number: NEX-20421-10
Estimated Ship Date: Today
Estimated Ship Date: Today
Nitrous Oxide System, 4-Bolt Throttle Body, 102mm Plate, Wet, +400 hp, 10 lb. Bottle, Chevy, LS, Kit
Part Number: NEX-20933-10
Estimated Ship Date: Today
Estimated Ship Date: Today
Nitrous Oxide System, 4-Bolt Throttle Body, 90mm Plate, Wet, +400 hp, 10 lb. Bottle, Chevy, LS, Kit
Part Number: NEX-20934-10
Estimated Ship Date: Today
Estimated Ship Date: Today
Nitrous Oxide System, 3-Bolt Throttle Body, Wet, +350 hp, 10 lb. Bottle, GM, LS, Kit
Part Number: NEX-20935-10
Estimated Ship Date: Today
Estimated Ship Date: Today
Nitrous Oxide System, 4-Bolt Throttle Body, 90mm Plate, Wet, +400 hp, 5 lb. Bottle, Chevy, LS, Kit
Part Number: NEX-20934-05
Not Yet Reviewed
Estimated Ship Date: May 15, 2026 if ordered today
Estimated Ship Date: May 15, 2026 if ordered today
Nitrous Oxide System, Billet Crossbar, Wet Style, Square Bore Plate, Dual Stage, 10 lb. Bottle, Kit
Part Number: NEX-66042-10
Not Yet Reviewed
Estimated Ship Date: May 15, 2026 if ordered today
Estimated Ship Date: May 15, 2026 if ordered today
Nitrous Oxide System, Billet Crossbar, Wet Style, Square Bore Plate, Dual Stage, 15 lb. Bottle, Kit
Part Number: NEX-66042-15
Estimated Ship Date: May 12, 2026 if ordered today
Estimated Ship Date: May 12, 2026 if ordered today
Nitrous Oxide System, 4-Bolt Throttle Body, 102mm Plate, Wet, +400 hp, 5 lb. Bottle, Chevy, LS, Kit
Part Number: NEX-20933-05
Not Yet Reviewed
Estimated Ship Date: May 15, 2026 if ordered today
Estimated Ship Date: May 15, 2026 if ordered today
Nitrous Oxide System, Single Entry Billet Crossbar, Wet Style, Dominator 4500 Series Plate, 10 lb. Bottle, Kit
Part Number: NEX-63870-10
Not Yet Reviewed
Estimated Ship Date: May 12, 2026 if ordered today
Estimated Ship Date: May 12, 2026 if ordered today
Nitrous System, 5 lb Bottle, Dodge, TBI Plate Kit, Magnum Motor, Kit
Part Number: NEX-20945-05
Not Yet Reviewed
Estimated Ship Date: May 12, 2026 if ordered today
Estimated Ship Date: May 12, 2026 if ordered today
Nitrous Oxide System, Single Entry Billet Crossbar, Wet Style, Dominator 4500 Series Plate, Kit
Part Number: NEX-63870-00
Not Yet Reviewed
Estimated Ship Date: May 12, 2026 if ordered today
Estimated Ship Date: May 12, 2026 if ordered today
Nitrous Oxide System, Mopar Plate, Wet, +400 hp, 15 lb. Bottle, Aluminum, White, Chrysler, Dodge, Jeep, Kit
Part Number: NEX-20944-15
Not Yet Reviewed
Estimated Ship Date: May 15, 2026 if ordered today
Estimated Ship Date: May 15, 2026 if ordered today
Nitrous Oxide System, 3-Bolt Throttle Body, Wet, +350 hp, 5 lb. Bottle, GM, LS, Kit
Part Number: NEX-20935-05
Not Yet Reviewed
Estimated Ship Date: May 15, 2026 if ordered today
Estimated Ship Date: May 15, 2026 if ordered today
Nitrous Oxide System, Single Entry Billet Crossbar, Wet Style, Square Bore Plate, 15 lb. Bottle, Kit
Part Number: NEX-63540-15
Not Yet Reviewed
Estimated Ship Date: May 15, 2026 if ordered today
Estimated Ship Date: May 15, 2026 if ordered today
Nitrous Oxide Injection System Kit Dodge Hellcat Nitrous Plate System w/ 5lb bottle
Part Number: NEX-20943-05
Not Yet Reviewed
Estimated Ship Date: May 15, 2026 if ordered today
Estimated Ship Date: May 15, 2026 if ordered today
Nitrous Oxide System, Billet Crossbar, Wet Style, Dominator 4500 Series Plate, 12 lb. Bottle, Kit
Part Number: NEX-60547-12
Not Yet Reviewed
Estimated Ship Date: May 15, 2026 if ordered today
Estimated Ship Date: May 15, 2026 if ordered today
Nitrous Oxide System, Billet Crossbar, Wet Style, Square Bore Plate, Dual Stage, Kit
Part Number: NEX-66042-00
Not Yet Reviewed
Estimated Ship Date: May 15, 2026 if ordered today
Estimated Ship Date: May 15, 2026 if ordered today
Nitrous Oxide System, Mopar Plate, Wet, +400 hp, 10 lb. Bottle, Aluminum, White, Chrysler, Dodge, Jeep, Kit
Part Number: NEX-20944-10
Estimated Ship Date: Today
Estimated Ship Date: Today
Nitrous Oxide System, 4-Bolt Throttle Body, 90mm Plate, Wet, +400 hp, Chevy, LS, Kit
Part Number: NEX-20934-00
Not Yet Reviewed
Estimated Ship Date: May 12, 2026 if ordered today
Estimated Ship Date: May 12, 2026 if ordered today
Nitrous Oxide System, Billet Crossbar, Wet Style, Square Bore Plate, 10 lb. Bottle, Kit
Part Number: NEX-63540-10
Not Yet Reviewed
Estimated Ship Date: May 12, 2026 if ordered today
Estimated Ship Date: May 12, 2026 if ordered today
