More info:On thiese cars there are Bosch fuel injection system
(some 900 turbo 90-93 do have Lucas system)
combined with Saab APC system.
For a complete upgrade you need the fuel chip and
modification of the APC or DI/APC unit.
The fuel chip provides approx 15% more fuel on full load.
Tuned chip to be used with petrol (not ethanol or other)
When ordering, please refer to the three last
digits on the Bosch LH ECU.