Welcome to CSS File Service

Dyno

All our files are tested on 4x4 dyno

Support

Live support on skype 

New Slave users

ALL New slaves receive 5 FREE files on purchases

Login Form

Working time

Monday:  07:00h - 16:00h
Tuesday - Friday:   09:00h - 12:00h
  13:00h - 18:00h
Saturday - Sunday:     Closed

Payment

paypal

CSS Performance Tuning is the result of many years of research, development and experience in automobile technology and car tuning. We offer only the very best in custom ECU remapping, car tuning and vehicle engine tuning using the latest ECU programming techniques and software available. Our core technical skills are combined with a passion for outstanding car performance tuning and customer service in everything we provide to thousands of motorists and businesses world wide. Our growing network of CSS- Approved dealers can be found throughout the EU and further afield. CSS dealers provide car tuning, economy tuning and engine tuning services that are 'Best in Class'. When it comes to choosing a professional high quality engine tuner for your vehicle, you can trust CSS.
 
Many tuning company's offer tuning files, but only few have real support or quality.
How to know, if company is genuine and can support you as a dealer?
Here are things that we can provide for our dealers:
- 7 different Slave tools
- real time Skype Tech-support
- training course
- Free vag hot fix
- All Files tested on 4X4 Dyno
ask the same from any other company that offers tuning files.