This is a very complex question to answer. Mainly because of all the possible and variable modifications that can be done to any vehicle. The greater the number of modifications, generallly the greater the cost is involved. Mainly because Vehicle Testing is generally required. Brake and Swerve testing if required is expensive due to a closed track hire, number of person involved including the filming of the testing as carried out. This is aPrice on Application as applied. So please email your vehicle type, the changes made to me, I can do my best to quote the job.