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Engine Exhaust Package is a performance upgrade option for performance customisation in Need for Speed: Underground.

The packages included engine and exhaust components to improve the acceleration rating of a car, with additional packages unlocked as the player progresses through Underground Mode.

Street (Level 1)[]

Level 1
Level 1

Contents[]

  • Cold Air Intake System
  • Cat-Back Exhaust System
  • Replace Headers

Brands[]

  • Package 1: AEM, Aerospeed, DC Sports, Injen Technology, HKS USA
  • Package 2: NEUSPEED, Jackson Racing, HP Racing, Stillen, Venom
  • Package 3: Skunk2 Racing, Borla, A'PEXi, GReddy
  • Package 4: 5Zigen, Skunk2 Racing, A'PEXi

Pro (Level 2)[]

Level 2
Level 2
  • Cost: 1,000
  • Unlock: Beat event #30: "Dead Calm" in Underground Mode.

Contents[]

  • Mild Camshaft & Cam Gears
  • High Performance Throttle Body
  • High Flow Intake Manifold
  • Larger Diameter Downpipe

Brands[]

  • Package 1: AEM, Jackson Racing, A'PEXi, GReddy, Venom
  • Package 2: Arospeed, NEUSPEED, Skunk2 Racing, Borla, Injen Technology
  • Package 3: DC Sports, HKS USA, HP Racing, Stillen
  • Package 4: Scorpion Exhausts, Henshin Auto, DC Sports

Extreme (Level 3)[]

Level 3
Level 3

Contents[]

  • Replace Piston & Rods
  • Racing Camshaft & Cam Gears
  • Port & Polish Heads
  • Blueprint the Block
  • Low Restriction, High Flow Headers Installed

Brands[]

  • Package 1: AEM, NEUSPEED, Jackson Racing, Venom, Arospeed
  • Package 2: Greddy, Skunk2 Racing, A'PEXi, Borla, HKS USA
  • Package 3: DC Sports, Injen Technology, HP Racing, Stillen

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 Engine Exhaust Package upon them beating event #7: "TJ's Time Trial". If the player does not select the package as their reward for the event, it is offered again as a reward for beating events #26: "Keep Them Coming" and #96: "Mods to the Max".