Truck / SUV
Jeep®
Restoration
Stock Replacement
Late Model Muscle
Tools
Gifts, Clothing, & More
Circle Track
Street Rod
Powersports
Paint & Body
Marine
Jr Dragster
Availability
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 27 Items.
Nitrous Jet Kit, Q-Jet/Holley Spredbore Jet Kit
Part Number: NEX-30080JP
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Nitrous Jet Kit, Dual Holley/Gas Jet Kit
Part Number: NEX-50240JP
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Nitrous Jet Kit, Q-Jet/Holley Spreadbore, Hitman Plus Jet Kit
Part Number: NEX-40081JP
Not Yet Reviewed
Estimated Ship Date: Apr 14, 2026 if ordered today
Estimated Ship Date: Apr 14, 2026 if ordered today
Nitrous Jet Kit, Hitman Plus Holley Dominator Jet Kit
Part Number: NEX-40071JP
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Nitrous Jet Kit, Q-Jet/Holley Spreadbore, Hitman Jet Kit
Part Number: NEX-40080JP
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Nitrous Oxide Plate, Billet Aluminum, Black Anodized, Fits Holley Hi-Ram Intake, Nozzles, Braided Lines, Kit
Part Number: NEX-NX940
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Nitrous System, 10 lb Bottle, Q-Jet/Holley Spreadbore, Hitman Kit, 100-150-200 HP, Kit
Part Number: NEX-40080-10
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Nitrous System, Q-Jet/Holley Spredbore, 50-100-150-200-250-300 HP, No Bottle, Kit
Part Number: NEX-30080-00
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Nitrous System, 10 lb Bottle, Q-Jet/Holley Spreadbore, Hitman Plus Kit, 100-150-200 HP, Kit
Part Number: NEX-40081-10
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Nitrous System, 10 lb Bottle, Q-Jet/Holley Spredbore, 50-100-150-200-250-300 HP, Kit
Part Number: NEX-30080-10
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Nitrous System, 12 lb Bottle, Q-Jet/Holley Spreadbore, Hitman Plus Kit, 100-150-200 HP, Kit
Part Number: NEX-40081-12
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Nitrous System, 5 lb Bottle, Q-Jet/Holley Spreadbore, Hitman Kit, 100-150-200 HP, Kit
Part Number: NEX-40080-05
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Nitrous System, 5 lb Bottle, Q-Jet/Holley Spreadbore, Hitman Plus Kit, 100-150-200 HP, Kit
Part Number: NEX-40081-05
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Nitrous System, 15 lb Bottle, Q-Jet/Holley Spreadbore, Hitman Kit, 100-150-200 HP, Kit
Part Number: NEX-40080-15
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Nitrous System, 15 lb Bottle, Q-Jet/Holley Spreadbore, Hitman Plus Kit, 100-150-200 HP, Kit
Part Number: NEX-40081-15
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Nitrous System, 5 lb Bottle, Q-Jet/Holley Spredbore, 50-100-150-200-250-300 HP, Kit
Part Number: NEX-30080-05
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Nitrous System, Q-Jet/Holley Spreadbore, Hitman Plus Kit, 100-150-200 HP, No Bottle
Part Number: NEX-40081-00
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Nitrous System, 15 lb Bottle, Q-Jet/Holley Spredbore, 50-100-150-200-250-300 HP, Kit
Part Number: NEX-30080-15
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Nitrous System, 12 lb Bottle, Q-Jet/Holley Spredbore, 50-100-150-200-250-300 HP, Kit
Part Number: NEX-30080-12
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Nitrous System, Q-Jet/Holley Spreadbore, Hitman Kit, 100-150-200 HP, No Bottle
Part Number: NEX-40080-00
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Nitrous System, 12 lb Bottle, Q-Jet/Holley Spreadbore, Hitman Kit, 100-150-200 HP, Kit
Part Number: NEX-40080-12
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Nitrous Plate; Stage 6 Plate Conversion Kit; Holley 4-Barrel; 50-300 WHP; Incl. Plate; Connectors; HP Settings
Part Number: NEX-NX304
Not Yet Reviewed
Estimated Ship Date: Today
Estimated Ship Date: Today
Nitrous System; 15 lb Bottle, Hitman Plus Holley Dominator; Nitrous System; 50-200 WHP; Complete System
Part Number: NEX-40071-15
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Nitrous System; 12 lb Bottle, Hitman Plus Holley Dominator; Nitrous System; 50-200 WHP; Complete System
Part Number: NEX-40071-12
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
Nitrous System; 10 lb Bottle, Hitman Plus Holley Dominator; Nitrous System; 50-200 WHP; Complete System
Part Number: NEX-40071-10
Not Yet Reviewed
Estimated Ship Date: Apr 15, 2026 if ordered today
Estimated Ship Date: Apr 15, 2026 if ordered today
