Nitrous Oxide upgrades in Need for Speed: Underground 2 can be applied to enable temporary Nitrous speed boosts or further improve them.
The effectiveness of an individual part is dependent on the package they are included in;
- Street - Low speed increase
- Pro - Moderate speed increase
- Extreme - High speed increase
Upgrades[]
| Package | Part | Price | Unlock |
|---|---|---|---|
| Street | Dry Shot of Nitrous Oxide | 750 | Find the Performance Shop in Beacon Hill |
| Pro | Wet Shot of Nitrous Oxide | 2,000 | Find the Performance Shop in Coal Harbor East |
| Extreme | Direct Port Nitrous Oxide | 4,000 | Find the Performance Shop in Coal Harbor West |
| Unique | Direct Port Nitrous Oxide | 4,000 | Win 6 Outrun Races in Stage 5 |
Incompatible Upgrades[]
- Dry Shot of Nitrous Oxide - Wet Shot of Nitrous Oxide - Direct Port Nitrous Oxide
| Need for Speed: Underground 2 - Customisation | |
|---|---|
| Body | Carbon Fibre Parts · Exhaust Tips · Front Bumpers · Headlights · Hoods · Rear Bumpers · Rims · Roof Scoops · Side Mirrors · Need for Speed: Underground 2/Body Shop/Side Skirts · Spoilers · Taillights · Wide Body Kits |
| Graphics | Decals · Paint · Vinyls |
| Performance | Brakes · ECU · Engine · Nitrous Oxide · Suspension · Transmission · Turbo · Tyres · Weight Reduction |
| Specialties | Custom Gauges · Doors · Hydraulics · Lights · Neon · Nitrous Purge · Spinners · Split Hoods · Trunk Audio · Window Tint |