"Tuning Firms and Tuned Models"
By Yousif Memon

 In-house tuning companies work for automakers to supply modifications, both mechanical and cosmetic. Looking for parts with these companies may increase your chance of finding the specific part or body kit your looking for. You can also pull parts from the tuned version of your car. For example, if I own a base model Honda Civic, I can pull parts of the Tuned-by-Mugen Civic. This is also a great way to find specific body kits and upgrades.

Car Maker - Tuning firm(s)

 Japanese Makes-

 Toyota - TRD
 Nissan - Nismo, IMPUL, Autech
 Honda - Mugen, Spoon, SEEKER-Web.com
 Mitsubishi - Ralliart
 Subaru - SPT
 Mazda - MAZDASPEED
 Suzuki - WORKS

 American Makes:

 Ford - Henessey,  TeamRS (Ford Focus ST), Ford Performance Group, SVT

 Chevrolet - Henessy, SS (Super Sport)

 Dodge - Henessey, SRT

 European Makes:

 Mercedes - McLaren, AMG

 BMW - M/// Division

Audi - S Division

Renault - RenaultSport

Volkswagen - GTi (VW Golf)