E.C.U. and Fuel System

Upgrade your Need for Speed Underground car's acceleration and top speed with ECU and fuel system parts, available from Challenge 9.

Street Performance

Available starting from Challenge 9, this kit costs $1000 and includes a Performance Chip.

• Brand Package 1: Jackson Racing, Venom, Stillen
• Brand Package 2: AEM, GReddy, Skunk2 Racing
• Brand Package 3: A'PEXi, Jackson Racing, Stillen

Pro Performance

Unlockable in Challenge 38, this kit costs $2000 and includes a High Flow Fuel Pump, Adjustable Fuel Pressure Regulator, Replace Fuel Rail, and Replace Fuel Filter.

• Brand Package 1: Venom, AEM, GReddy
• Brand Package 2: Stillen, Jackson Racing, Skunk2 Racing
• Brand Package 3: A'PEXi, Stillen, Venom

Extreme Performance

This kit is available from Challenge 80 and costs $4000. It includes a Stand Alone Engine Management Unit and Replace Fuel Injectors.

• Brand Package 1: Jackson Racing, AEM, GReddy
• Brand Package 2: Stillen, A'PEXi, Venom
• Brand Package 3: Venom, Skunk2 Racing, Stillen