Need For Speed: Hot Import Nights/Performance Parts

Performance parts can be used to improve a vehicle's top speed, acceleration and handling in Need For Speed: Hot Import Nights with a touch of Carbon and Underground 2 turning mechanics.

Performance parts are accessible via the Your Cars menu and they are thoroughly spread across Bayview City and Palmont City and easily found by players through blue street lights. On the minimap, Performance Shops are shown as blue dots. They are available in Street, Pro, Extreme and Hyper packages, with the latter being the most effective upgrades.

The effectiveness of an individual part is dependent on the package they are included in;
 * Street - Low increase of acceleration, top speed and handling
 * Pro - Moderate increase of acceleration, top speed and handling
 * Extreme - High increase of acceleration, top speed and handling
 * Hyper - Overpower increase of acceleration, top speed and handling

Engine
Engine upgrades are can be applied to increase acceleration.

Incompatible Parts

 * Mild Camshaft, Cam Gears & Racing Camshaft and Gears - Hypercar-grade Camshaft and Gears
 * Performance Exhaust - Cat Back Exhaust System
 * Replace Headers & High Flow Headers - Hypercar-grade Stable Flow Headers

ECU
ECU upgrades are can be applied to increase acceleration and top speed.

Incompatible Upgrades

 * Performance Chip & Engine Management Unit - Hyper Enhancement Engine Chip

Transmission
Transmission upgrades are can be applied to increase acceleration and top speed.

Incompatible Upgrades

 * Differential, Limited Slip Differential and 6 Speed Transmission - 9 Speed Hyper Grade Transmission
 * High Performance Clutch - Hyper Grade Performance Clutch

Suspension
Suspension upgrades are can be applied to improve handling.

Incompatible Parts

 * Sport Springs and Shocks - Performance Springs - Shocks and Coil Over Suspension System - Reinforced Coil Over Suspension System
 * Front and Rear Sway Bars and Large Diameter Sway Bars - Anti-Roll Large Diameter Sway Bars

Nitrous Oxide
Nitrous Oxide upgrades are can be applied to enable temporary Nitrous speed boosts or further improve them.

Incompatible Upgrades

 * Dry Shot of Nitrous Oxide - Wet Shot of Nitrous Oxide and Direct Port Nitrous Oxide - Nitro Methane mixed Nitrous Oxide

Tyres
Tyre upgrades are can be applied to improve handling.

Incompatible Modifications

 * Street Performance Tyres - Pro Performance Tyres - Extreme Performance Tyres - Racing Performance Tyres

Brakes
Brake upgrades are lower braking times, resulting in improved handling.

Incompatible Upgrades

 * Cross Drilled Rotors - Large Diameter Rotors - Cross Drilled and Slotted Rotors - Tungsten Cross Drilled and Slotted Rotors
 * 6 Piston Racing Calipers - Tungsten 6 Piston Racing Calipers
 * Steel Compound Brake Pads - Race Compound Brake Pads - Enhanced ABS Brake Pads

Weight Reduction
Weight Reduction upgrades are can be applied to a car to lower its overall weight, resulting in improved acceleration and handling.

Turbo/Supercharger
Turbos and Superchargers are can be applied to increase acceleration and top speed.

Upgrades (supercharger)
Note: Supercharger upgrades are only available exclusively for Muscle Cars or a few Exotic or Tuner cars with Superchargers instead of Turbos.