In my quest for better accelaration i have been shaving weight off myself and the car, rear wiper motor and arm, spare tyre & electric punp all sound deadening ( amazed at the weight ), rear seat belts and any unecessary trim have been removed, Also i have switched to 99 octane fuel.I have orderd acoustic sound deadening carpet and clips and i will make a replacement rear hatch carpet, will post pics when done.