What is a remapped chip and how does it work?

Basically, all modern fuel injected cars (whether non-turbo, turbo or turbo-diesel) use an on-board computer called an ECU (Electronic Control Unit) to control the fuel delivery and/or ignition timing. This replaces conventional carburettors and mechanically controlled distributors.

By re-programming the memory chip within the ECU, Superchips can increase torque and power by optimising ignition/fuelling parameters, giving improved throttle response.
Why haven't the manufacturers done it?

The program for your particular engine is held in memory on a chip. This program can be read by the computer but cannot normally be altered. The manufacturers have to make many compromises when writing this program.

They must allow for fuel economy, exhaust emissions regulations, the very worst grades of fuel being used and for the car going months without proper servicing. If you are prepared to service your car on time and use good quality fuel there is great potential for optimising or remapping the chip.

When Superchips reprogram a chip for a new car their objective is to make it better than the original. Torque is the fundamental item for improvement, and increases are usually in the order of 10% on normally aspirated cars, 35% for turbos and 40% for turbo-diesels!!
The engine is run up on the rolling road with diagnostic equipment monitoring the ignition timing and fuelling. The ignition timing is remapped to create a new advance curve, the fuel map is modified to further optimise power output on full throttle and to improve throttle response without destroying economy on part throttle.