All Working Need for Speed: ProStreet Cheats - Xbox 360

Cheat Mode
Enter the following codes on the "Code Entry" screen in the career menu:

CASHMONEY - $10,000 Added to your account
SAFETYNET - 5 Repair Tickets
HORSEPOWER - Receive Chevelle SS in Career Mode
ZEROZEROZERO - Receive Coke Zero Golg GTI in Carrer Mode
ENERGIZERLITHIUM - Receive Energizer Lithium Dodge Viper SRT-10 in Career Mode
MITSUHISHIGOFAR - Receive Mitisubishi Lancer Evolution in Carrer Mode
MASTERCODE - Unlock all Bonuses
UNLOCKALLTHINGS - Unlocks Bonuses (Including Stage 4 parts)

Achievements
Complete each of the following achievements below to get the allotted gamerscore:

8 Player Race (10) - Competed in an online multiplayer race against 7 human opponents
Beat Showdown 1 (25) - Awarded for beating Showdown 1 in Career.
Beat Showdown 2 (25) - Awarded for beating Showdown 2 in Career.
Beat Showdown 3 (25) - Awarded for beating Showdown 3 in Career.
Best Blueprint (50) - Your Blueprint is used by a player in the Top 100 on any weekly Freestyle Race Day leaderboard.
Career Domination (125) - Dominated Career. Awarded for dominating all Career Race Days.
Clutch (15) - Won 5 times in a Drag event using Clutch.
Co-op Victory (20) - Achieved when all 8 players in a multiplayer Race Day score a total of 10,000 points.
Perfect Tire Grip (10) - Awarded for having maximum tire grip in drag staging
Performance Upgrade (10) - Modify a Tier 1 car into a Tier 3 car. Brought to you by K&N - The Original High-Flow Air Filter.
Race Day Coordinator (15) - Awarded when your Race Day has been shared 5 times.
Community Race Day 1 (15) - Awarded for participating in the Community Race Day 1. Visit www.NeedforSpeed.com for details
Community Race Day 2 (15) - Awarded for participating in the Community Race Day 2. Visit www.NeedforSpeed.com for details
Ryo's Record 1 (15) - Beat Ryo's Record within Battle Machine at Grip at Chicago Airfield in Career.
Ryo's Record 2 (15) - Beat Ryo's Record within Battle Machine at Drift at Nevada Highway II in Career.
Ryo's Record 3 (15) - Beat Ryo's Record in Battle Machine at 1/2 Mile Drag at Portland International Raceway II in Career.
Ryo's Record 4 (15) - Beat Ryo's Record within React Team Sessions at Sector Shootout at Autopolis in Career.
Ryo's Record 5 (15) - Beat Ryo's Record within React Team Sessions at Drift at Tokyo Dockyard II in Career.
Ryo's Record 6 (15) - Beat Ryo's Record within React Team Sessions at Top Speed Run at Autobahnring II in Career.
Ryo's Record 7 (15) - Beat Ryo's Record within Super Promotion at Time Attack at Infineon II in Career.
Ryo's Record 8 (15) - Beat Ryo's Record within Super Promotion at 1/4 Mile Drag at Texas World Speedway in Career.
Ryo's Record 9 (15) - Beat Ryo's Record within Super Promotion at Wheelie Competition at Autobahnring II in Career.
Ryo's Record 10 (15) - Beat Ryo's Record within Super Promotion at Speed Challenge at Nevada Highway II in Career.
Domination (15) - Awarded for dominating a Career Race Day.
Drag King (25) - Defeat the Drag King. Awarded for beating the Drag King in Career.
Drag Master (15) - Awarded for unlocking the Rogue Speed Org in Career.
Drift King (25) - Defeat the Drift King. Awarded for beating the Drift King in Career.
Drift Master (15) - Awarded for unlocking the Noise Bomb Org in Career.
EA Moderator (25) - Beat an EA Moderator in a Ranked Online Multiplayer race.
First Big Crash (5) - Awarded for crashing and totaling a car. Brought to you by Progressive Insurance!
Friction Fever (10) - Catch Friction Fever by playing an Online Grip race with an infected player.
Gear Strain (10) - Catch the Gear Strain by playing an Online Drag race with an infected player.
Grip King (25) - Defeat the Grip King. Awarded for beating the Grip King in Career.
Grip Master (15) - Awarded for unlocking the GEffect Org in Career.
Horsepower Challenge (10) - Increase your Car's HP by 25. Brought to you by K&N - THE Performance Air Filter
Keep on Wheelin' (5) - Wheelie 50 or more feet in a Wheelie Competition
Manual Transmission (10) - Won 5 times in a non-Drag event using Manual Transmission.
Paparazzi (15) - Awarded when you upload your car photo to NeedforSpeed.com
Blueprint Apprentice (15) - Awarded when your Blueprint has been shared 5 times.
Blueprint Master (25) - Awarded when your Blueprint has been shared 25 times.
Race Day Leader (15) - Rank 1st on the leaderboard for a shared Race Day. Leaderboard must have at least 3 players.
Race Day Organizer (25) - Awarded when your Race Day has been shared 25 times.
Race Day Victory (10) - Awarded for winning a Career Race Day.
Safe Driver (50) - Finish 5 Career or Ranked Race Days with no car damage. Brought to you by Progressive Insurance!
Share a Blueprint (10) - Successfully share a Blueprint with another player
Showdown King (75) - Defeat the Showdown King. Awarded for beating the Showdown King in Career.
Speed King (25) - Defeat the Speed King. Awarded for beating the Speed King in Career.
Speed Master (15) - Awarded for unlocking the Nitrocide Org in Career.

Unlock Boss Cars
Beat the following bosses to unlock indicated cars:

Mazda RX-7 - Beat the "Drift King"
BMW M3 E96 - Beat the "Grip King"
Pontiac GTO - Beat the "Speed King"
Ford Mustang GT - Beat the "Drag King"
Mitsubishi Lancer Evo X - Beat the "Showdown King"