As you probably know by now, the carburetor, which fascinated backyard motorheads for so long has gone the way of the Yugo. Fuel injectors now reign. And that is where chip tuning comes in. Each injection engine comes off the line with a built-in computer-ECU (Electronic Control Unit) that regulates the ignition, the injection and the air – fuel proportion. This ECU contains a chip with the engine parameters necessary to operate the engine. In order to give the engine a new operating program, the chip can be reprogrammed. These chips can be obtained from manufacturers like Bulldog and Superchips and installed by the lay mechanic who is not a rocket scientist or mechanical engineer. Really.