Need For Speed Underground 2 Cheats

Brakes bonus upgrade:
Get over 7,500 points in the Pressure Tuning 2 mini-game.

Chassis bonus upgrade:
Get over 5,000 points in the Pressure Tuning 1 mini-game.

Controls bonus upgrade:
Get over 5,000 points in the Engine Tuning 3 mini-game.

Drivetrain bonus upgrade:
Get over 50 points in the Dyno Run1 mini-game.

Engine bonus upgrade:
Get over 100 points in the Nitrous Tuning 1 mini-game.

Exhaust bonus upgrade:
Get over 2,000 points in the Engine Tuning 1 mini-game.

Exhaust bonus upgrade:
Get over 2,000 points in the Engine Tuning 1 mini-game.

Nitrous bonus upgrade:
Get over 175 points in the Nitrous Tuning 3 mini-game.

Suspension bonus upgrade:
Get over 100 points in the Dyno Run2 mini-game.

Turbo bonus upgrade:
Get over 150 points in the Nitrous Tuning 2 mini-game.

Wheels bonus upgrade:
Get over 4,000 points in the Engine Tuning 2 mini-game.  

Easy wins:
The key to winning on any course or mode is to have a flawless race. Avoid traffic, cut corners, and drive straight at every opportunity. A tip is to check where you will be racing next and set up a custom free-race to emulate the race course; here you can check the feel of the course and find valuable shortcuts.
User Cheat by smokinginthegirlsroom

Quick boost:
If you crash your car in a race and you a manual transmission, put in neutral. Hit the gas all the way, then slam it into first gear to get a very quick boost.