How can performance be so easily improved? Why didn't Porsche build this performance into the car to begin with? There are many reasons for this. Some cars are deliberately kept in a lower state of tune so as not to get too close to the performance of other models (i.e. marketing reasons). In the case of the 968 - where a 18bhp gain is typical - this was taking it too close to the current 964 models output of 250bhp. In the case of the 944S2, the 944 Turbo was only 39bhp away and the 3.2 Carrera (at the time in 1989) was 232bhp. Other reasons included ensuring the car can use low octane fuel and survive a few missed services.

If you are prepared to use 98 octane fuel (not essential, but best to get the maximum performance) - you can enjoy the performance that your car is actually capable of. Power gains are anything from 10-25bhp (often more) with torque gains of 15-22lbft. NOTE: All power and torque gains are dependent on your car's current engine condition, modifications and induction systems. Power gains can not be guaranteed.

IMPORTANT: Only applicable to cars from the 1985 model year onwards (oval dash 944 models). Early 944 models had a soldered in DME EPROM ('82-'85), hence they can not be upgraded. If you have a 944 2.5 N/A please check what ECU you have before ordering - see the table below.