Engine (Upgrade)

Overview
The engine upgrades emphasize on a number of factors: Engine upgrades are a must if you want a high performance ride.
 * Increasing the speed at which RPM picks up.
 * Decreasing the RPM loss while shifting.
 * Making it easier to handle low RPMs at high gears.

Engine Packages
There a five engine upgrade packages:

Race
Cost: 5,500

The Race package consists of: This upgrade if available from the beginning of the game.
 * Cold Air Intake
 * Sports Muffler
 * Intake Manifold

Pro
Cost: 14,200

The pro package consists of: This upgrade can be unlocked by beating Izzy, Blacklist member 12.
 * Forged Pistons
 * Racing Throttle Body
 * Racing Crankshaft

Super Pro
Cost: 29,800

The super pro package consists of: This upgrade can be unlocked by beating Kaze, Blacklist member 7.
 * Racing Valves
 * Replace Headers
 * Cat-back Exhaust System

Ultimate
Cost: 98,000

The ultimate package consists of:
 * Racing Pistons
 * High Flow Fuel Injectors
 * High Capacity Oil Cooler

Junkman (Custom Performance Upgrade)
The junkman package consists of: The junkman upgrade applies the currently applied engine package with a customizable system. It gives the best performance when combined with the Ultimate engine package.
 * Custom Intake and Exhaust

Trivia

 * Two of the five engine upgrades are unlocked by female racers (Izzy and Kaze)
 * The Super Pro package is able to change the engine sound of all the cars it is equipped on.
 * The Ultimate Engine Package's price far outclasses the cost of any other upgrade in the game.