The most difficult concept to grasp for most people is that remapping is merely engine tuning, albeit that it’s being done electronically rather than mechanically. A chip’ is simply an electronic storage devices or EPROM which is located on a circuit board inside the E.C.U (the Engine Control Unit). The chip contains values in a hexadecimal form which the E.C.U’S main processor (another device on the same circuit board) can understand and use and control the engine.

Each value inside the chip is held in its own separate position (known as ‘address’), and due to the way manufactures develop many engine on the same unit and to fix into tax bands, engines are detuned to fit into these bands and achieve the manufactures desired place into the market. As a result the car never performs as well as its mechanically controlled counterpart from the factory…

When a car is remapped, we are basically altering the values at the groups of addresses that control fuelling, ignition timing and on turbo engines, turbo boost, there are many other tables we change to allow for this to scale with systems that most other tuners miss whist they search for gimmicky trial solutions.