Differents between quadra natural admission and biturbo are:
- engine (cylinder head, all mobiles parts, ECU...)
- engine cooler (cooper + electrical pump),
- specifics turbo parts (intercooler, pipes, pressure sensors...)
- exhaust line,
- gearbox (PK9 with oil intercooler),
- front brakes,
- rear and front bumper,
- wheels,
- speedometer (max speed and fuel consumption computing).