
Turbo Package is a performance upgrade option for performance customisation in Need for Speed: Underground.
The packages included forced induction and intercooler components to improve the acceleration rating of a car, with additional packages unlocked as the player progresses through Underground Mode.
Street (Level 1)[]

- Cost: 1,000 Bank
- Unlock: Beat event #9: "All Go, No Show!" in Underground Mode.
Contents[]
- Stage 1 Turbo Kit
Brands[]
- Package 1: HKS USA
- Package 2: GReddy
- Package 3: Stillen
- Package 4: A'PEXi
- Package 5: Turbonetics
Pro (Level 2)[]

- Cost: 2,000 Bank
- Unlock: Beat event #38: "Import Tuner Drift Event" in Underground Mode.
Contents[]
- Stage 2 Turbo Kit with Intercooler
Brands[]
- Package 1: HKS USA
- Package 2: GReddy
- Package 3: Stillen
- Package 4: A'PEXi
- Package 5: Turbonetics
Extreme (Level 3)[]

- Cost: 4,000 Bank
- Unlock: Beat event #80: "First Dibs" in Underground Mode.
Contents[]
- Stage 3 Turbo Kit
Brands[]
- Package 1: HKS USA
- Package 2: GReddy
- Package 3: Stillen
- Package 4: A'PEXi
- Package 5: Turbonetics
Unique[]
Unique performance parts offer vast performance improvements over all levels of any performance part, and can only be won by beating TJ's time trial events in Underground Mode.
Upon beating a time trial event, TJ will give the player a selection of unique parts to choose from as a reward. Any unique part rewards offered by TJ at the end of an event that are not chosen by the player are made available as a reward option again for the following time trial event offered by TJ.
TJ will offer the player a unique Turbo package upon them beating event #26: "Keep Them Coming". If the player does not select the package as their reward for the event, it is offered again as a reward for beating event #96: "Mods to the Max".