They can be unlocked by selecting the 'Unique Performance Upgrade' marker upon defeating a Blacklist racer.
Junkman parts permanently raise a performance aspect and can be stacked with any upgrade package. The upgraded levels are Race, Pro, Super Pro and Ultimate. Each package offers greater performance gains for a car but some vehicles can not be equipped with certain lower level packages.
The Engine, Transmission, Suspension, Nitrous, Tyres, Brakes and Turbo Charger or Supercharger of a car can be upgraded.Įach performance part category is also divided into upgrade packages. Performance Parts featured in Need for Speed: Most Wanted are utilised to improve the top speed, acceleration and handling of a car.
